Horizon (1964)
Horizon is a Documentary TV series on BBC Two that premiered in 1964.
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Where to watch Horizon
Streaming data from JustWatch via TMDB. Each link opens that service's search for the title.
Horizon episode guide
Season 1 9 episodes
| Episode | Title | Air date |
|---|
| S01E01 | The World of Buckminster Fuller | Feb 4, 1964 |
| S01E02 | Pesticides and Posterity | May 30, 1964 |
| S01E03 | A Candle to Nature | Jun 27, 1964 |
| S01E04 | Strangeness Minus Three | Jul 25, 1964 |
| S01E05 | The Air of Science | Aug 22, 1964 |
| S01E06 | The Knowledge Explosion | Sep 21, 1964 |
| S01E07 | The Amateur Scientist | Oct 19, 1964 |
| S01E08 | Tots and Quods and Woodgeries | Nov 16, 1964 |
| S01E09 | Science, Toys and Magic | Dec 14, 1964 |
Season 2 24 episodes
| Episode | Title | Air date |
|---|
| S02E01 | Learning from Machines | Jan 6, 1965 |
| S02E02 | The Technique of Change | Jan 20, 1965 |
| S02E03 | Star Gazers | Feb 3, 1965 |
| S02E04 | Science and Art | Feb 17, 1965 |
| S02E05 | The Great Computer Scandal / H-Bomb Detectors | Mar 3, 1965 |
| S02E06 | Forbidden Events / I am a Madman | Mar 17, 1965 |
| S02E07 | Restless Genius / Faster, Farther, Higher | Mar 31, 1965 |
| S02E08 | The Other Side of the Pill | Apr 14, 1965 |
| S02E09 | The Big Smoke / The Model Makers | May 12, 1965 |
| S02E10 | The Long Slide / Men with Gills | May 26, 1965 |
| S02E11 | Men and Sharks / Sir Henry Dale, OM, FRS | Jun 9, 1965 |
| S02E12 | The Brain Gain / The Sudden Night / Learning to Speak | Jun 23, 1965 |
| S02E13 | Dr. Joseph Needham / Mariner IV | Jul 14, 1965 |
| S02E14 | Science Fiction : Science Fact? / Alone and Unarmed | Jul 28, 1965 |
| S02E15 | Certain of Uncertainty / State of Nature | Aug 11, 1965 |
| S02E16 | Time Stood Still / Weighty Matters | Aug 25, 1965 |
| S02E17 | Fuel for the Future / Collector's Piece | Sep 8, 1965 |
| S02E18 | Let Newton Be | Sep 22, 1965 |
| S02E19 | Special Senses / Toil, Sweat & Tears | Oct 10, 1965 |
| S02E20 | An Affair of the Heart | Oct 24, 1965 |
| S02E21 | 10,000 Tombs | Nov 7, 1965 |
| S02E22 | Albert Szent-Györgyi M.D., Ph.D., D.h.c. | Nov 21, 1965 |
| S02E23 | The Big Dishes / The Living Stream | Dec 5, 1965 |
| S02E24 | Boys on Bubbles / Problems and Puzzles | Sep 25, 1966 |
Season 3 23 episodes
| Episode | Title | Air date |
|---|
| S03E01 | Windows of the Soul / Elixir of Youth | Jan 2, 1966 |
| S03E02 | The Troubled Mind / Triple-A. S. | Jan 16, 1966 |
| S03E03 | A Man of Two Visions / The Scientist Applied | Jan 30, 1966 |
| S03E04 | The Dolphins that Joined The Navy / A Theory of The Earth | Feb 13, 1966 |
| S03E05 | Route 128 | Feb 27, 1966 |
| S03E06 | The Beginning of Life / Science Friction | Mar 13, 1966 |
| S03E07 | So you want to be an Inventor? / The Severed Hand | Mar 27, 1966 |
| S03E08 | Chance and Decay / Meteorite Mystery | Apr 10, 1966 |
| S03E09 | Towers of Ilium / The Exploding City | Apr 24, 1966 |
| S03E10 | Man in Space | May 8, 1966 |
| S03E11 | Destination Mars / Editors in Conference" | May 22, 1966 |
| S03E12 | Man meets Duck / The Picture Machines | Jun 5, 1966 |
| S03E13 | Where must the Money Go? / Phantoms Incorporated | Jun 19, 1966 |
| S03E14 | Genes in Action / Scientists and War | Jul 3, 1966 |
| S03E15 | The Lonely Children | Jul 17, 1966 |
| S03E16 | Man of Science / 'Nature' Tomorrow | Jul 31, 1966 |
| S03E17 | M.I.T.'s ABC / The Disturbed Child | Sep 25, 1966 |
| S03E18 | Ten Years in the Antarctic | Oct 10, 1966 |
| S03E19 | The Athlete | Oct 24, 1966 |
| S03E20 | From Peenemunde to the Moon | Nov 7, 1966 |
| S03E21 | Sex-Change? | Nov 21, 1966 |
| S03E22 | The Structure of Life | Dec 5, 1966 |
| S03E23 | The Wages of Science | Dec 19, 1966 |
Season 4 23 episodes
| Episode | Title | Air date |
|---|
| S04E01 | Sons of Cain | Jan 17, 1967 |
| S04E02 | When Is a Body Dead? / How to Win Friends and Influence People | Jan 31, 1967 |
| S04E03 | How Best to Make a Man / How Best to Make a Scientist | Feb 14, 1967 |
| S04E04 | Dynamo - The Life of Michael Faraday | Feb 28, 1967 |
| S04E05 | Migraine | Mar 14, 1967 |
| S04E06 | How Safe Is Surgery? | Mar 28, 1967 |
| S04E07 | Sleep and Dreams | Apr 11, 1967 |
| S04E08 | The Shape of War to Come | Apr 25, 1967 |
| S04E09 | Memory | May 9, 1967 |
| S04E10 | Masters of the Desert | May 23, 1967 |
| S04E11 | Cancer - The Search for the Virus | Jun 6, 1967 |
| S04E12 | Cancer - The Smoker's Gamble | Jun 20, 1967 |
| S04E13 | Science and the Supernatural | Jul 4, 1967 |
| S04E14 | Hypnosis | Jul 18, 1967 |
| S04E15 | The War of the Boffins | Sep 12, 1967 |
| S04E17 | Aspects of Alcohol | Sep 26, 1967 |
| S04E18 | Lords of the Sea | Oct 10, 1967 |
| S04E19 | Will Art Last? | Oct 24, 1967 |
| S04E20 | Air Safety: The Unknown Factor | Nov 17, 1967 |
| S04E21 | The Life and Death of the Pine Processionary | Nov 21, 1967 |
| S04E22 | Koestler on Creativity | Dec 5, 1967 |
| S04E23 | The World of Ted Serios | Dec 12, 1967 |
| S04E24 | Professor in Toyland | Dec 24, 1967 |
Season 5 24 episodes
| Episode | Title | Air date |
|---|
| S05E01 | An Ingenious Man - Sir H. John Baker | Jan 2, 1968 |
| S05E02 | Man's Best Friend | Jan 30, 1968 |
| S05E03 | Once a Junkie | Feb 13, 1968 |
| S05E04 | Towns, Traffic and Tomorrow | Feb 27, 1968 |
| S05E05 | The Man Makers | Mar 12, 1968 |
| S05E06 | Man in Search of Himself | Mar 26, 1968 |
| S05E07 | Investigating Murder | Apr 9, 1968 |
| S05E08 | The Equation of Murder | May 7, 1968 |
| S05E09 | The Lindemann Enigma | Sep 12, 1968 |
| S05E10 | From Field to Factory | Sep 19, 1968 |
| S05E11 | Comfort on Aging | Sep 26, 1968 |
| S05E12 | Experiments in War | Oct 3, 1968 |
| S05E13 | Medecine in Russia | Oct 10, 1968 |
| S05E14 | African Medicine | Oct 17, 1968 |
| S05E15 | The Broken Bridge | Oct 24, 1968 |
| S05E16 | Children Without Words | Oct 31, 1968 |
| S05E17 | The Computer Revolution | Nov 7, 1968 |
| S05E18 | Doctor's Dilemma | Nov 14, 1968 |
| S05E19 | In the Matter of Dr. Alfred Nobel | Nov 21, 1968 |
| S05E20 | Wheels Within Wheels | Nov 28, 1968 |
| S05E21 | Black Man, White Science | Dec 5, 1968 |
| S05E22 | The Hidden World | Dec 12, 1968 |
| S05E23 | The Talgai Skull | Dec 19, 1968 |
| S05E24 | Phantasmagoria or The Story of the Magic Lantern | Dec 24, 1968 |
Season 6 37 episodes
| Episode | Title | Air date |
|---|
| S06E01 | Inside Every Fat Man | Jan 2, 1969 |
| S06E02 | If Only They Could Speak | Jan 9, 1969 |
| S06E03 | The Miraculous Wonder: The Human Eye | Jan 16, 1969 |
| S06E04 | The Years of the Locust | Jan 23, 1969 |
| S06E05 | The Gifted Child | Jan 30, 1969 |
| S06E06 | The Last of the Polymaths | Feb 6, 1969 |
| S06E07 | Music and the Mind | Feb 13, 1969 |
| S06E08 | Report on V.D. | Feb 20, 1969 |
| S06E09 | Extra-Sensory Perception | Feb 27, 1969 |
| S06E10 | The Drift from Science | Mar 6, 1969 |
| S06E11 | Powers of Persuasion | Mar 13, 1969 |
| S06E12 | The View from Space | Mar 20, 1969 |
| S06E13 | The Unborn Patient | Mar 27, 1969 |
| S06E14 | The Physicist in the Kitchen | Apr 3, 1969 |
| S06E15 | King Solomon's Garden | Apr 10, 1969 |
| S06E16 | Muck Today, Poison Tomorrow | Apr 24, 1969 |
| S06E17 | Shark | May 1, 1969 |
| S06E18 | Technology and Self-Determination | May 15, 1969 |
| S06E19 | After Apollo | May 22, 1969 |
| S06E20 | Discovery | May 29, 1969 |
| S06E21 | Machines and People | Jun 5, 1969 |
| S06E22 | Science on Safari | Sep 15, 1969 |
| S06E23 | A True Madness | Sep 22, 1969 |
| S06E24 | Problems of Pain | Sep 29, 1969 |
| S06E25 | Four Fast Legs and a Nose | Oct 6, 1969 |
| S06E26 | Father of the Man | Oct 13, 1969 |
| S06E27 | Master of the Microscope | Oct 20, 1969 |
| S06E28 | C.E.R.N. | Oct 27, 1969 |
| S06E29 | Snap, Crackle and Bang | Nov 3, 1969 |
| S06E30 | Cancer Now | Nov 10, 1969 |
| S06E31 | There's a Rhino in My Sugar | Nov 17, 1969 |
| S06E32 | Fit to Live? | Nov 24, 1969 |
| S06E33 | Don't Cackle, Lay Eggs | Dec 1, 1969 |
| S06E34 | How Much Do You Drink? | Dec 8, 1969 |
| S06E35 | A Game of War | Dec 15, 1969 |
| S06E36 | Bread | Dec 22, 1969 |
| S06E37 | For the Safety of Mankind | Dec 29, 1969 |
Season 7 37 episodes
| Episode | Title | Air date |
|---|
| S07E01 | Just Another World | Jan 5, 1970 |
| S07E02 | Henry Royce, Mechanic | Jan 12, 1970 |
| S07E03 | A Disease of Our Time - Stress | Jan 19, 1970 |
| S07E04 | A Disease of Our Time - Heart Attacks | Jan 26, 1970 |
| S07E05 | Sex and Sexuality | Feb 2, 1970 |
| S07E06 | Whose Coast? | Feb 16, 1970 |
| S07E07 | A Much Wanted Child | Feb 23, 1970 |
| S07E08 | The Expert Witness | Mar 2, 1970 |
| S07E09 | After the Iron Age | Mar 9, 1970 |
| S07E10 | Let the Therapy Fit the Crime | Mar 16, 1970 |
| S07E11 | The World Outside | Mar 23, 1970 |
| S07E12 | In the Beginning was the Word | Mar 30, 1970 |
| S07E13 | The Drifting of the Continents | Apr 13, 1970 |
| S07E14 | A Case of Priority | Apr 20, 1970 |
| S07E15 | The Fretful Elements | Apr 27, 1970 |
| S07E16 | One Man's Meat | May 11, 1970 |
| S07E17 | Only Skin Deep | Jul 6, 1970 |
| S07E18 | Wolves and Wolfmen | Jul 13, 1970 |
| S07E19 | A Measure of Uncertainty | Aug 10, 1970 |
| S07E20 | The Manhunters | Aug 17, 1970 |
| S07E21 | Don't Get Sick in America | Aug 24, 1970 |
| S07E22 | Crown of Thorns | Aug 31, 1970 |
| S07E23 | Noah's Ark in Kensington | Sep 7, 1970 |
| S07E24 | Virus | Sep 14, 1970 |
| S07E25 | Water, Water | Sep 21, 1970 |
| S07E26 | All Creatures Great and Small | Sep 28, 1970 |
| S07E27 | A Child for a Lifetime | Oct 5, 1970 |
| S07E28 | Something for Our Children | Oct 12, 1970 |
| S07E29 | Million Ton Tanker | Nov 2, 1970 |
| S07E30 | The Insect War | Nov 9, 1970 |
| S07E31 | The Savage Mind | Nov 16, 1970 |
| S07E32 | Tanks | Nov 23, 1970 |
| S07E33 | Mind the Machine | Nov 30, 1970 |
| S07E34 | Square Pegs | Dec 7, 1970 |
| S07E35 | Earthquakes, The City that Waits to Die | Dec 14, 1970 |
| S07E36 | The Man who Talks to Frogs | Dec 21, 1970 |
| S07E37 | The Gargantuan Triumph of Science | Dec 28, 1970 |
Season 8 32 episodes
| Episode | Title | Air date |
|---|
| S08E01 | Wildlife - The Last Great Battle | Jan 4, 1971 |
| S08E02 | Great Ormond Street | Jan 18, 1971 |
| S08E03 | A Bulldozer Through Heaven | Jan 25, 1971 |
| S08E04 | Rumors of War | Feb 1, 1971 |
| S08E05 | I'm Dependent - You're Addicted (I) | Feb 15, 1971 |
| S08E06 | Kuru - To Tremble with Fear | Feb 22, 1971 |
| S08E07 | Due to a Lack of Interest, Tomorrow Has Been Canceled | Mar 8, 1971 |
| S08E08 | What Kind of Doctor? | Mar 15, 1971 |
| S08E09 | A Nice Sort of Accident to Have | Mar 22, 1971 |
| S08E10 | The Wood | Apr 5, 1971 |
| S08E11 | The Measure of Man | Apr 12, 1971 |
| S08E12 | Three Score Years and Then? | Apr 26, 1971 |
| S08E13 | Darwin's Bulldog | May 3, 1971 |
| S08E14 | The Secret | May 10, 1971 |
| S08E15 | What Every Girl Should Know | May 17, 1971 |
| S08E16 | Tastes of Foods to Come | May 24, 1971 |
| S08E17 | Looking for a Happy Landing | May 31, 1971 |
| S08E18 | A Case of Depression | Jun 7, 1971 |
| S08E19 | The Total War Machine | Jun 14, 1971 |
| S08E20 | The Dinosaur Hunters | Jun 21, 1971 |
| S08E21 | Your Country Needs You? | Sep 27, 1971 |
| S08E22 | Rheumatism | Oct 4, 1971 |
| S08E23 | If at First You Don't Succeed... You Don't Succeed | Oct 11, 1971 |
| S08E24 | One Liverpool or Two? | Oct 18, 1971 |
| S08E25 | Rutherford / The Cavendish Today | Oct 25, 1971 |
| S08E26 | The Fierce People | Nov 1, 1971 |
| S08E27 | The Men Who Painted Caves | Nov 15, 1971 |
| S08E28 | The Crab Nebula | Nov 22, 1971 |
| S08E29 | Can Venice Survive? | Nov 29, 1971 |
| S08E30 | Willingly to School? | Dec 6, 1971 |
| S08E31 | The Periscope War | Dec 20, 1971 |
| S08E32 | Patently Absurd | Dec 27, 1971 |
Season 9 33 episodes
| Episode | Title | Air date |
|---|
| S09E01 | The Missing Link | Jan 3, 1972 |
| S09E02 | Navajo - The Last Red Indians | Jan 10, 1972 |
| S09E03 | How Much Do You Smell? | Jan 17, 1972 |
| S09E04 | The Parasite of Paradise | Jan 31, 1972 |
| S09E05 | The Day it Rained Periwinkles | Feb 7, 1972 |
| S09E06 | Are You Doing This for Me Doctor, or Am I Doing It for You? | Feb 14, 1972 |
| S09E07 | How They Sold Doomsday | Feb 21, 1972 |
| S09E08 | For Love or Money? | Feb 28, 1972 |
| S09E09 | Whales, Dolphins and Men | Mar 6, 1972 |
| S09E10 | What Is Race? | Mar 13, 1972 |
| S09E11 | The Man-Made Lakes in Africa | Mar 20, 1972 |
| S09E12 | Survival in the Sahara | Mar 27, 1972 |
| S09E13 | Mind Over Body | Apr 10, 1972 |
| S09E14 | Out of Volcanoes | Apr 17, 1972 |
| S09E15 | The Wizard Who Spat on the Floor | May 1, 1972 |
| S09E16 | Rail Crash | May 8, 1972 |
| S09E17 | Do You Dig National Parks? | May 22, 1972 |
| S09E18 | Sorry I Opened My Mouth | Jun 12, 1972 |
| S09E19 | The Way We Move | Jul 3, 1972 |
| S09E20 | The Life that Lives on Man | Jul 10, 1972 |
| S09E21 | Sex Can Be a Problem | Jul 24, 1972 |
| S09E22 | The Surgery of Violence | Jul 31, 1972 |
| S09E23 | Hospital, 1922 | Oct 12, 1972 |
| S09E24 | When Polar Bears Swam in the Thames | Oct 19, 1972 |
| S09E25 | The Making of the English Landscape | Oct 26, 1972 |
| S09E26 | Shadows of Bliss | Nov 2, 1972 |
| S09E27 | The Billion-Dollar Marsh | Nov 9, 1972 |
| S09E28 | Do You Sincerely Want a Long Life? | Nov 16, 1972 |
| S09E29 | The Making of a Natural History Film | Nov 23, 1972 |
| S09E30 | Fire | Nov 30, 1972 |
| S09E31 | Alaskan Pipe-Dream | Dec 7, 1972 |
| S09E32 | Their Life in Your Hands | Dec 21, 1972 |
| S09E33 | Navigating Europe | Dec 28, 1972 |
Season 10 32 episodes
| Episode | Title | Air date |
|---|
| S10E01 | Epidemic | Jan 4, 1973 |
| S10E02 | Worlds in Collision | Jan 11, 1973 |
| S10E03 | The Military Necessity | Jan 18, 1973 |
| S10E04 | The Curtain of Silence | Jan 25, 1973 |
| S10E05 | Crime Lab | Feb 1, 1973 |
| S10E06 | When the Breeding Has to Stop | Feb 8, 1973 |
| S10E07 | Science Is Dead, Long Live Science | Feb 15, 1973 |
| S10E08 | ...And Where Will the Children Play? | Mar 1, 1973 |
| S10E09 | Acupuncture: A Chinese Puzzle | Mar 8, 1973 |
| S10E10 | What Time Is Your Body? | Mar 22, 1973 |
| S10E11 | Survival of the Weakest | Apr 5, 1973 |
| S10E12 | Red Sea Coral and the Crown of Thorns | Apr 12, 1973 |
| S10E13 | Lumbered... with Back-Ache! | Apr 26, 1973 |
| S10E14 | Airport | May 3, 1973 |
| S10E15 | Do You Remember the Memory Man? | May 17, 1973 |
| S10E16 | What a Waste! | May 24, 1973 |
| S10E17 | The Laws of the Land | Jun 7, 1973 |
| S10E18 | Do We Really Need the Railways? | Jun 14, 1973 |
| S10E19 | The Telly of Tomorrow? | Jun 21, 1973 |
| S10E20 | How Does It Hurt? | Jul 5, 1973 |
| S10E21 | A Scientist Looks at Religion | Aug 9, 1973 |
| S10E22 | In Search of Konrad Lorenz | Sep 24, 1973 |
| S10E23 | Stretch Up Tall | Oct 1, 1973 |
| S10E24 | Gilding the Lily | Oct 8, 1973 |
| S10E25 | The Black Holes of Gravity | Oct 15, 1973 |
| S10E26 | What's so Big About Us? | Oct 22, 1973 |
| S10E27 | The Steadfast Tin Soldier | Oct 29, 1973 |
| S10E28 | Carry on Smoking | Nov 5, 1973 |
| S10E29 | Air Crash Detective | Nov 26, 1973 |
| S10E30 | An Element of Mystery | Dec 3, 1973 |
| S10E31 | Digging Up the Future | Dec 17, 1973 |
| S10E32 | Kula, a Reason for Giving | Dec 24, 1973 |
Season 11 33 episodes
| Episode | Title | Air date |
|---|
| S11E01 | A Matter of Self-Defense | Jan 7, 1974 |
| S11E02 | Bird Brain - The Mystery of Bird Navigation | Jan 14, 1974 |
| S11E03 | Never Too Late to Learn | Jan 21, 1974 |
| S11E04 | The Great Fish Hunt | Jan 28, 1974 |
| S11E05 | Pedal Power | Feb 4, 1974 |
| S11E06 | The Writing on the Wall | Feb 11, 1974 |
| S11E07 | Where Did the Colorado Go? | Feb 18, 1974 |
| S11E08 | The Future Goes Boom | Mar 4, 1974 |
| S11E09 | Fusion: The Energy Promise | Mar 11, 1974 |
| S11E10 | The First Ten Years | Apr 22, 1974 |
| S11E11 | This Yankee Dodge Beats Mesmerism Hollow | Apr 29, 1974 |
| S11E12 | The Hunting of the Quark | May 6, 1974 |
| S11E13 | A Noah's Ark for Europe | May 13, 1974 |
| S11E14 | Bridges: When It Comes to the Crunch | Jun 3, 1974 |
| S11E15 | Search for Life | Jun 10, 1974 |
| S11E16 | The Secrets of Sleep | Jun 10, 1974 |
| S11E17 | Who Needs Skills? | Jun 24, 1974 |
| S11E18 | Hills of Promise | Jul 1, 1974 |
| S11E19 | The Race for the Double Helix | Jul 8, 1974 |
| S11E20 | The Immigrant Doctors | Jul 15, 1974 |
| S11E21 | Mines, Minerals and Men | Jul 22, 1974 |
| S11E22 | What Price Steak? | Jul 29, 1974 |
| S11E23 | Listen and Be Loyal | Aug 5, 1974 |
| S11E24 | Adam or Eve? | Aug 12, 1974 |
| S11E25 | An Unholy Scramble | Sep 2, 1974 |
| S11E26 | Do as You Are Told | Oct 28, 1974 |
| S11E27 | The First Signs of Washoe | Nov 4, 1974 |
| S11E28 | The Other Way | Nov 11, 1974 |
| S11E29 | The Greatest Advance Since the Wheel? | Nov 25, 1974 |
| S11E30 | Joey | Dec 9, 1974 |
| S11E31 | The Neglected Harvest | Dec 16, 1974 |
| S11E32 | How on Earth Did They Do That? | Dec 23, 1974 |
| S11E33 | The Lysenko Affair | Dec 30, 1974 |
Season 12 26 episodes
| Episode | Title | Air date |
|---|
| S12E01 | The Killer Dust | Jan 20, 1975 |
| S12E02 | A Time to Be Born | Jan 27, 1975 |
| S12E03 | The Unsafe Sea | Feb 10, 1975 |
| S12E04 | The Change of Life | Feb 17, 1975 |
| S12E05 | Project Fido | Feb 24, 1975 |
| S12E06 | The Planets | Mar 10, 1975 |
| S12E07 | The Long, Long Walkabout | Apr 7, 1975 |
| S12E08 | The Overworked Miracle | Apr 14, 1975 |
| S12E09 | Not the Cheapest, But the Best | Apr 21, 1975 |
| S12E10 | A Spoonful of Roughage | Apr 28, 1975 |
| S12E11 | Brain Poison | May 5, 1975 |
| S12E12 | The Bulldog's Last Bark? | May 12, 1975 |
| S12E13 | Benjamin | May 19, 1975 |
| S12E14 | The McMaster Experiment | Jun 2, 1975 |
| S12E15 | The Glazed Outlook | Jun 9, 1975 |
| S12E16 | The Three Chord Trick | Jun 16, 1975 |
| S12E17 | The Cleanest Place in the World | Jun 23, 1975 |
| S12E18 | Strange Sleep | Jun 30, 1975 |
| S12E19 | The Greatest Advance Since the Wheel? | Jul 7, 1975 |
| S12E20 | How Do You Read? | Jul 14, 1975 |
| S12E21 | The Sickly Sea | Jul 21, 1975 |
| S12E22 | Happy Catastrophe | Jul 28, 1975 |
| S12E23 | To Die, to Live - The Survivors of Hiroshima | Aug 4, 1975 |
| S12E24 | Cannabis | Aug 11, 1975 |
| S12E25 | Meditation and the Mind | Aug 18, 1975 |
| S12E26 | The Trobriand Experiment | Dec 29, 1975 |
Season 13 30 episodes
| Episode | Title | Air date |
|---|
| S13E01 | The Transplant Experience | Jan 5, 1976 |
| S13E02 | Intimate Strangers | Jan 12, 1976 |
| S13E03 | A Fair Share of What Little We Have | Jan 19, 1976 |
| S13E04 | The Incredible Machine | Jan 26, 1976 |
| S13E05 | King Coal Revived | Feb 2, 1976 |
| S13E06 | A Question of Trust | Feb 9, 1976 |
| S13E07 | The Case of the Bermuda Triangle | Feb 16, 1976 |
| S13E08 | The Lords of the Labyrinth | Feb 23, 1976 |
| S13E09 | Inside the Shark | Mar 1, 1976 |
| S13E10 | The Chemical Dream | Mar 8, 1976 |
| S13E11 | The Edelin Affair | Mar 15, 1976 |
| S13E12 | The World of Margaret Mead | Mar 22, 1976 |
| S13E13 | The Pathway from Madness | Mar 29, 1976 |
| S13E14 | Geronimo's Children | Apr 5, 1976 |
| S13E15 | The Vision of the Blind | Apr 12, 1976 |
| S13E16 | A Lesson for Teachers | Apr 26, 1976 |
| S13E17 | Why Did Stuart Die? | May 3, 1976 |
| S13E18 | The Children of Peru | May 17, 1976 |
| S13E19 | Dying | May 24, 1976 |
| S13E20 | A Home Like Ours... A Story of Four Children | Jun 7, 1976 |
| S13E21 | What's Wrong with the Sun? | Jun 14, 1976 |
| S13E22 | The Bull's Eye War | Oct 25, 1976 |
| S13E23 | The Hot-Blooded Dinosaurs | Nov 1, 1976 |
| S13E24 | Billion Dollar Bubble | Nov 8, 1976 |
| S13E25 | The Selfish Gene | Nov 15, 1976 |
| S13E26 | A Child of Our Own | Nov 22, 1976 |
| S13E27 | Secrets of a Coral Island | Nov 29, 1976 |
| S13E28 | The Long Valley | Dec 6, 1976 |
| S13E29 | Half-Way to 1984 | Dec 13, 1976 |
| S13E30 | The Mystery of King Arthur and His Round Table | Dec 20, 1976 |
Season 14 23 episodes
| Episode | Title | Air date |
|---|
| S14E01 | A Smile for a Crocodile | Jan 7, 1977 |
| S14E02 | The Pill for the People | Jan 14, 1977 |
| S14E03 | The Ape That Stood Up | Jan 21, 1977 |
| S14E04 | The Human Animal | Feb 4, 1977 |
| S14E05 | The Guinea Pig and the Law | Feb 18, 1977 |
| S14E06 | Hunters of the Seal | Feb 25, 1977 |
| S14E07 | The Red Planet | Mar 4, 1977 |
| S14E08 | One of Nature's Hotels | Mar 11, 1977 |
| S14E09 | Dawn of the Solar Age | Mar 18, 1977 |
| S14E10 | Genetic Roulette | Apr 1, 1977 |
| S14E11 | The Amazing Doctor Newton | Jul 15, 1977 |
| S14E12 | The Trouble with Medicine | Jul 22, 1977 |
| S14E13 | Silent Speech | Jul 29, 1977 |
| S14E14 | The Green Machine | Aug 5, 1977 |
| S14E15 | The River That Came Clean | Sep 2, 1977 |
| S14E16 | Blueprints in the Bloodstream | Sep 9, 1977 |
| S14E17 | 40 Years of Murder | Sep 16, 1977 |
| S14E18 | The Cry for Help | Sep 30, 1977 |
| S14E19 | The Sunspot Mystery | Oct 7, 1977 |
| S14E20 | The Rhine's Revenge | Oct 21, 1977 |
| S14E21 | Icarus' Children | Dec 2, 1977 |
| S14E22 | The Healing Nightmare | Dec 9, 1977 |
| S14E23 | The Great Wine Revolution | Dec 23, 1977 |
Season 15 24 episodes
| Episode | Title | Air date |
|---|
| S15E01 | Living Machines | Jan 6, 1978 |
| S15E02 | A Land for All Reasons | Jan 20, 1978 |
| S15E03 | I Don't Want to Be a Burden | Jan 27, 1978 |
| S15E04 | Zero G | Feb 3, 1978 |
| S15E05 | The Message in the Rocks | Feb 17, 1978 |
| S15E06 | The Eddystone Lights | Feb 24, 1978 |
| S15E07 | Light of the 21st Century | Mar 10, 1978 |
| S15E08 | The New Breadline | Mar 24, 1978 |
| S15E09 | Now the Chips Are Down | Mar 31, 1978 |
| S15E10 | Explosions in the Mind | Jul 14, 1978 |
| S15E11 | One Small Step | Jul 21, 1978 |
| S15E12 | The Tsetse Trap | Jul 28, 1978 |
| S15E13 | A Whisper From Space | Aug 4, 1978 |
| S15E14 | Prisoners of Hope | Aug 11, 1978 |
| S15E15 | On a Different Track | Aug 18, 1978 |
| S15E16 | Careering into Science | Aug 25, 1978 |
| S15E17 | Cashing in on the Ocean | Sep 1, 1978 |
| S15E18 | Bags of Life | Sep 8, 1978 |
| S15E19 | Innocent Slaughter? | Sep 15, 1978 |
| S15E20 | The Beersheva Experiment | Nov 3, 1978 |
| S15E21 | Divers Do It Deeper | Nov 10, 1978 |
| S15E22 | The Big Sleep | Nov 17, 1978 |
| S15E23 | The Vital Spark | Nov 24, 1978 |
| S15E24 | The Red Deer of Rhum | Dec 29, 1978 |
Season 16 25 episodes
| Episode | Title | Air date |
|---|
| S16E01 | The Forever Fuel | Feb 26, 1979 |
| S16E02 | In Search of Pegasus | Mar 5, 1979 |
| S16E03 | The Keys of Paradise | Mar 12, 1979 |
| S16E04 | Sweet Solutions | Mar 19, 1979 |
| S16E05 | Bronze Age Blast-Off | Mar 26, 1979 |
| S16E06 | The Real Bionic Man | Apr 2, 1979 |
| S16E07 | A Mediterranean Prospect | Apr 9, 1979 |
| S16E08 | Elements of Risk | Apr 23, 1979 |
| S16E09 | Mr. Ludwig's Tropical Dreamland | Apr 30, 1979 |
| S16E10 | Where Nothing Happens Twice | May 7, 1979 |
| S16E11 | Journey Through the Human Body | May 14, 1979 |
| S16E12 | The Fight to Be Male | May 21, 1979 |
| S16E13 | The Robots Are Coming | May 28, 1979 |
| S16E14 | Mexican Oil Dance | Sep 24, 1979 |
| S16E15 | Tracks on the Oregon Trail | Oct 1, 1979 |
| S16E16 | The Race to Reshape Cars | Oct 8, 1979 |
| S16E17 | Dragnet for Diabetes | Oct 15, 1979 |
| S16E18 | The Lost Waters of the Nile | Oct 22, 1979 |
| S16E19 | Survival of the Fastest | Oct 29, 1979 |
| S16E20 | A Touch of Sensitivity | Nov 5, 1979 |
| S16E21 | A Treasury of Trees | Nov 12, 1979 |
| S16E22 | Darkness Visible | Nov 19, 1979 |
| S16E23 | Uranium Goes Critical | Dec 3, 1979 |
| S16E24 | The Fat in the Fire | Dec 10, 1979 |
| S16E25 | Decade | Dec 17, 1979 |
Season 17 25 episodes
| Episode | Title | Air date |
|---|
| S17E01 | The Ghost Of The Amoco Cadiz | Jan 14, 1980 |
| S17E02 | You Are Old, Father William | Jan 21, 1980 |
| S17E03 | Cleared for Take-Off | Feb 4, 1980 |
| S17E04 | A Sporting Chance | Feb 11, 1980 |
| S17E05 | The Cancer Detectives of Lin Xian | Feb 18, 1980 |
| S17E06 | The Big If... | Feb 25, 1980 |
| S17E07 | Cash from Trash | Mar 3, 1980 |
| S17E08 | Encounter with Jupiter | Mar 10, 1980 |
| S17E09 | Portrait of a Poison | Mar 17, 1980 |
| S17E10 | Magnet Earth | Mar 24, 1980 |
| S17E11 | Goodbye Gutenberg | Sep 1, 1980 |
| S17E12 | Invasion of the Virions | Sep 8, 1980 |
| S17E13 | Beyond the Milky Way | Sep 15, 1980 |
| S17E14 | Little Boxes | Sep 22, 1980 |
| S17E15 | The Other Kenya | Sep 29, 1980 |
| S17E16 | Moving Still | Oct 6, 1980 |
| S17E17 | The Way Out | Oct 13, 1980 |
| S17E18 | The Dead Sea Lives | Oct 20, 1980 |
| S17E19 | Once in a Million Years | Oct 27, 1980 |
| S17E20 | Smoker's Luck | Nov 3, 1980 |
| S17E21 | Behind the Horoscope | Nov 10, 1980 |
| S17E22 | The Mondragon Experiment | Nov 17, 1980 |
| S17E23 | The Spike | Nov 24, 1980 |
| S17E24 | The Slatemakers | Dec 1, 1980 |
| S17E25 | Anatomy of a Volcano | Dec 15, 1980 |
Season 18 27 episodes
| Episode | Title | Air date |
|---|
| S18E01 | Spend and Prosper | Jan 5, 1981 |
| S18E02 | A Whole New Medicine | Jan 12, 1981 |
| S18E03 | The Qualyub Project | Jan 19, 1981 |
| S18E04 | No One Will Take Me Seriously | Jan 26, 1981 |
| S18E05 | Living with Dying | Feb 2, 1981 |
| S18E06 | A Is for Atom, B Is for Bomb | Feb 9, 1981 |
| S18E07 | Who Will Deliver Your Baby? | Feb 16, 1981 |
| S18E08 | West of Bangalore | Mar 2, 1981 |
| S18E09 | Gentlemen, Lift Your Skirts | Mar 9, 1981 |
| S18E10 | Hello Universe! | Mar 16, 1981 |
| S18E11 | Voices from Silent Hands | Mar 23, 1981 |
| S18E12 | Did Darwin Get It Wrong? | Mar 30, 1981 |
| S18E13 | East of Bombay | Apr 6, 1981 |
| S18E14 | Resolution on Saturn - The Rings | Apr 11, 1981 |
| S18E15 | Resolution on Saturn - The Moons | Apr 13, 1981 |
| S18E16 | Heads I Win, Tails You Lose | Sep 28, 1981 |
| S18E17 | The Hunt for the Legion Killer | Oct 5, 1981 |
| S18E18 | Breaking in Children | Oct 12, 1981 |
| S18E19 | The Grid | Oct 19, 1981 |
| S18E20 | Butterflies or Barley? | Oct 26, 1981 |
| S18E21 | Science for the People | Nov 2, 1981 |
| S18E22 | The Race to Ruin | Nov 9, 1981 |
| S18E23 | Death of the Dinosaurs | Nov 16, 1981 |
| S18E24 | The Pleasure of Finding Things Out | Nov 23, 1981 |
| S18E25 | The Cornucopia | Nov 30, 1981 |
| S18E26 | A Race Against Time | Dec 7, 1981 |
| S18E27 | Painting by Numbers | Dec 21, 1981 |
Season 19 22 episodes
| Episode | Title | Air date |
|---|
| S19E01 | The Secret of the Snake | Jan 11, 1982 |
| S19E02 | Finding a Voice | Jan 18, 1982 |
| S19E03 | The Sea Beyond the Dunes | Jan 25, 1982 |
| S19E04 | Whatever Happened to the Energy Crisis? | Feb 1, 1982 |
| S19E05 | Notes of a Biology Watcher | Feb 8, 1982 |
| S19E06 | The Cline Affair | Feb 15, 1982 |
| S19E07 | The Million Murdering Death | Feb 22, 1982 |
| S19E08 | Shots in the Dark | Mar 1, 1982 |
| S19E09 | The Victims | Mar 8, 1982 |
| S19E10 | The Future - Made in Japan? | Mar 15, 1982 |
| S19E11 | The Private Face of Medicine | Mar 22, 1982 |
| S19E12 | The Fatal Bargain | Apr 5, 1982 |
| S19E13 | The Miracle of Life | Oct 11, 1982 |
| S19E14 | The Case of the UFOs | Oct 18, 1982 |
| S19E15 | A Killing Rain | Oct 25, 1982 |
| S19E16 | Intimate Relations | Nov 1, 1982 |
| S19E17 | The Scientist and the Baby | Nov 8, 1982 |
| S19E18 | Brave New Babies? | Nov 15, 1982 |
| S19E19 | The Professor of Surgery | Nov 29, 1982 |
| S19E20 | The Chopper | Dec 6, 1982 |
| S19E21 | The State of the Planet | Dec 13, 1982 |
| S19E22 | The Mysterious Mr. Tesla | Dec 20, 1982 |
Season 20 24 episodes
| Episode | Title | Air date |
|---|
| S20E01 | Sizewell Under Pressure | Jan 10, 1983 |
| S20E02 | The Tropical Time Machine | Jan 17, 1983 |
| S20E03 | The Geneva Event | Jan 24, 1983 |
| S20E04 | How Much Can You Drink? | Feb 7, 1983 |
| S20E05 | Talking Turtle | Feb 14, 1983 |
| S20E06 | What Little Girls are Made of | Feb 21, 1983 |
| S20E07 | British Science - On the Wrong Track? | Feb 28, 1983 |
| S20E08 | The Great Plains Massacre | Mar 7, 1983 |
| S20E09 | Hard Rock | Mar 14, 1983 |
| S20E10 | Better Mind the Computer | Mar 21, 1983 |
| S20E11 | Madness on Trial | Apr 11, 1983 |
| S20E12 | Sixty Minutes to Meltdown | Apr 18, 1983 |
| S20E13 | Killer in the Village | Apr 25, 1983 |
| S20E14 | The Case of ESP | Sep 26, 1983 |
| S20E15 | The Artificial Heart | Oct 3, 1983 |
| S20E16 | Dr. Priestley and the Breath of Life | Oct 10, 1983 |
| S20E17 | Professor Hawking's Universe | Oct 17, 1983 |
| S20E18 | The Cruel Choice | Oct 24, 1983 |
| S20E19 | A Child's Guide to Languages | Oct 31, 1983 |
| S20E20 | China's Child | Nov 7, 1983 |
| S20E21 | The Earthquake Connection | Nov 14, 1983 |
| S20E22 | Prisoner or Patient? | Nov 28, 1983 |
| S20E23 | Cancer: The Pattern in the Genes | Dec 5, 1983 |
| S20E24 | The Academy | Dec 12, 1983 |
Season 21 22 episodes
| Episode | Title | Air date |
|---|
| S21E01 | The Intelligence Man | Jan 9, 1984 |
| S21E02 | Microworld! | Jan 16, 1984 |
| S21E03 | A New Green Revolution? | Jan 23, 1984 |
| S21E04 | Spies in the Wires | Jan 30, 1984 |
| S21E05 | Valley of the Inca | Feb 13, 1984 |
| S21E06 | The Conquest of Parasites | Feb 27, 1984 |
| S21E07 | Reflections on a River | Mar 5, 1984 |
| S21E08 | A Normal Face | Mar 12, 1984 |
| S21E09 | Prisoners of Incest | Mar 19, 1984 |
| S21E10 | Signs of the Apes, Songs of the Whales | Mar 26, 1984 |
| S21E11 | Professor Bonner and the Slime Moulds | Apr 9, 1984 |
| S21E12 | The Mind of a Murderer: The Case of the Hillside Strangler | Apr 16, 1984 |
| S21E13 | The Mind of a Murderer: The Mask of Madness | Apr 23, 1984 |
| S21E14 | A Cruel Inheritance | Apr 30, 1984 |
| S21E15 | The Malvern Link | May 7, 1984 |
| S21E16 | Contented Cows and Other Animals | Nov 5, 1984 |
| S21E17 | Picking Winners | Nov 12, 1984 |
| S21E18 | The Brain Puzzle | Nov 19, 1984 |
| S21E19 | Global Village | Nov 26, 1984 |
| S21E20 | Ivan | Dec 3, 1984 |
| S21E21 | A Mathematical Mystery Tour | Dec 10, 1984 |
| S21E22 | Supercharged | Dec 17, 1984 |
Season 22 16 episodes
| Episode | Title | Air date |
|---|
| S22E01 | Colourful Notions | Jan 7, 1985 |
| S22E02 | A World of Their Own | Jan 14, 1985 |
| S22E03 | Decoding Danebury | Jan 21, 1985 |
| S22E04 | A Mission to Heal | Jan 28, 1985 |
| S22E05 | Mystery of the Left Hand | Feb 4, 1985 |
| S22E06 | The Theatre of War | Feb 11, 1985 |
| S22E07 | The Careful Predator | Feb 25, 1985 |
| S22E08 | What Einstein Never Knew | Mar 4, 1985 |
| S22E09 | Eurekaaargh! | Mar 11, 1985 |
| S22E10 | Careering On | Mar 18, 1985 |
| S22E11 | How to Film the Impossible | Mar 25, 1985 |
| S22E12 | The Food Allergy War | Apr 1, 1985 |
| S22E13 | The Goddess of the Earth | Apr 15, 1985 |
| S22E14 | IRAS - The Supercooled Eye | Apr 22, 1985 |
| S22E15 | A Prize Discovery | Apr 29, 1985 |
| S22E16 | The Wrong Stuff | May 13, 1985 |
Season 23 22 episodes
| Episode | Title | Air date |
|---|
| S23E01 | Are You a Racist? | Jan 6, 1986 |
| S23E02 | Genesis | Jan 13, 1986 |
| S23E03 | Bitter Cold | Jan 20, 1986 |
| S23E04 | The Mould, the Myth and the Microbe | Jan 27, 1986 |
| S23E05 | Outbreak: The Microbe Masters the Mould | Feb 3, 1986 |
| S23E06 | Science...Fiction? | Feb 17, 1986 |
| S23E07 | The Children of Eve | Feb 24, 1986 |
| S23E08 | The New Face of Leprosy | Mar 3, 1986 |
| S23E09 | Hi-Tech à la Française | Mar 10, 1986 |
| S23E10 | In the Wake of HMS Sheffield | Mar 17, 1986 |
| S23E11 | AIDS: A Strange and Deadly Virus | Mar 24, 1986 |
| S23E12 | The Case of the Frozen Addict | Apr 7, 1986 |
| S23E13 | Nice Guys Finish First | Apr 14, 1986 |
| S23E14 | The Men Who Bottled a Cow | Apr 21, 1986 |
| S23E15 | Twice Five Plus the Wings of a Bird | Apr 28, 1986 |
| S23E16 | What Makes an Animal Smart? | May 12, 1986 |
| S23E17 | A Handful of Sugar with a Pinch of Salt | May 19, 1986 |
| S23E18 | Uranus Encounter | May 26, 1986 |
| S23E19 | Who Built Stonehenge? | Jun 9, 1986 |
| S23E21 | Battered Baby: From Generation to Generation | Jun 16, 1986 |
| S23E22 | Battered Baby: Breaking the Chain | Jun 23, 1986 |
| S23E23 | Doctors to Be | Jun 30, 1986 |
Season 24 22 episodes
| Episode | Title | Air date |
|---|
| S24E01 | The Twenty-Five Hour Clock | Jan 5, 1987 |
| S24E02 | The Search for the Disappeared | Jan 12, 1987 |
| S24E03 | The Blind Watchmaker | Jan 19, 1987 |
| S24E04 | Riding the Stack | Jan 26, 1987 |
| S24E05 | Bruno Bettelheim: The Man Who Cared for Children | Feb 2, 1987 |
| S24E06 | Bruno Bettelheim: A Sense of Surviving | Feb 9, 1987 |
| S24E07 | Energy from Outer Space | Feb 16, 1987 |
| S24E08 | The Return of the Osprey | Feb 23, 1987 |
| S24E09 | Can AIDS Be Stopped? | Mar 2, 1987 |
| S24E10 | Police Stress: The John Wayne Syndrome | Mar 9, 1987 |
| S24E11 | To Engineer Is Human | Mar 16, 1987 |
| S24E12 | The Magma Chamber | Mar 23, 1987 |
| S24E13 | Broken Images | Mar 30, 1987 |
| S24E14 | Trial Babies | Apr 6, 1987 |
| S24E15 | After Chernobyl - Closer to Home | Apr 13, 1987 |
| S24E16 | Making Sex Pay | May 11, 1987 |
| S24E17 | The Anthropic Principle | May 18, 1987 |
| S24E19 | Aircrash: The Burning Issue | Jun 1, 1987 |
| S24E20 | The Riddle of the Joints | Jun 8, 1987 |
| S24E21 | To Catch a Falling Star | May 15, 1987 |
| S24E22 | In the Light of New Information | Jun 22, 1987 |
| S24E23 | Janice's Choice | Jun 29, 1987 |
Season 25 25 episodes
| Episode | Title | Air date |
|---|
| S25E01 | The Transpanted Brain | Jan 4, 1988 |
| S25E02 | Death of a Star | Jan 11, 1988 |
| S25E03 | Playing With Madness | Jan 18, 1988 |
| S25E04 | The Canal in the Jungle | Jan 25, 1988 |
| S25E05 | Death of the Working Classes | Feb 1, 1988 |
| S25E06 | The Greenhouse Effect | Feb 8, 1988 |
| S25E07 | Struggling for Control | Feb 15, 1988 |
| S25E08 | Thinking | Feb 22, 1988 |
| S25E09 | Patients on Trial | Feb 29, 1988 |
| S25E10 | Purple Warrior - Rules of Engagement | Mar 7, 1988 |
| S25E11 | Purple Warrior - Limited War | Mar 14, 1988 |
| S25E12 | The Heart of Another | Mar 28, 1988 |
| S25E13 | Easter Islands - The Secret | Apr 11, 1988 |
| S25E14 | Easter Islands - The Story | Apr 18, 1988 |
| S25E15 | Doctors to Be - Trial by Interview | Apr 23, 1988 |
| S25E16 | Doctors to Be - The Knowledge | Apr 24, 1988 |
| S25E17 | Doctors to Be - Welcome to the Real World | Apr 25, 1988 |
| S25E18 | Cancer at Bay | May 2, 1988 |
| S25E19 | Traces of Murder | May 9, 1988 |
| S25E20 | The Hope of Progress | May 16, 1988 |
| S25E21 | A Newsday Revolution | May 23, 1988 |
| S25E22 | A Good Test? | Jun 6, 1988 |
| S25E23 | Superconductor - The Race for the Prize | Jun 13, 1988 |
| S25E24 | Believe Me | Jun 27, 1988 |
| S25E25 | The Quest for Tannu Tuva | Jul 4, 1988 |
Season 26 20 episodes
| Episode | Title | Air date |
|---|
| S26E01 | The Book of Man | Jan 9, 1989 |
| S26E02 | The Poison that Waits | Jan 16, 1989 |
| S26E03 | Perils of the Deep | Jan 23, 1989 |
| S26E04 | Smart Weapons | Jan 30, 1989 |
| S26E05 | Wasting the Alps | Feb 6, 1989 |
| S26E06 | In the Last Resort | Feb 13, 1989 |
| S26E07 | Gaze in Wonder | Feb 20, 1989 |
| S26E08 | In My Lifetime? | Feb 27, 1989 |
| S26E09 | Concerto | Mar 6, 1989 |
| S26E10 | Black Schizophrenia | Mar 13, 1989 |
| S26E11 | Trial in the Jungle | Mar 20, 1989 |
| S26E12 | Who Will Make Me Better? | Apr 3, 1989 |
| S26E13 | A Wonderful Life | Apr 17, 1989 |
| S26E14 | Why Buildings Make You Sick | Apr 24, 1989 |
| S26E15 | Jubilee | May 8, 1989 |
| S26E16 | Crash | May 15, 1989 |
| S26E17 | The New Sixth Sense | May 22, 1989 |
| S26E18 | Clive Sinclair: The Anatomy of an Inventor | Jun 12, 1989 |
| S26E19 | Newpin: A Lifetime | Jun 19, 1989 |
| S26E20 | Time of Darkness | Jun 26, 1989 |
Season 27 20 episodes
| Episode | Title | Air date |
|---|
| S27E01 | Oil Spill | Jan 8, 1990 |
| S27E02 | Medicine 2000 | Jan 15, 1990 |
| S27E03 | Food Irradiation: Would You Buy It? | Jan 22, 1990 |
| S27E04 | From Earth to Miranda | Jan 29, 1990 |
| S27E05 | Encounter With Neptune | Feb 5, 1990 |
| S27E06 | Guess What's Coming to Dinner? | Feb 12, 1990 |
| S27E07 | The First 14 Days | Feb 19, 1990 |
| S27E08 | The 10,000 Year Test | Mar 5, 1990 |
| S27E09 | Hurricane! | Mar 12, 1990 |
| S27E10 | The Britannic Greenhouse | Mar 19, 1990 |
| S27E11 | Cold Fusion | Mar 26, 1990 |
| S27E12 | The Quake of '89 - The Final Warning? | Apr 2, 1990 |
| S27E13 | The Sharpest Shot of the Universe | Apr 9, 1990 |
| S27E14 | The Company of Ants and Bees | Apr 23, 1990 |
| S27E15 | The Intelligent Island | Apr 30, 1990 |
| S27E16 | Legacy of a Volcano | May 14, 1990 |
| S27E17 | Do Cows Make You Mad? | May 21, 1990 |
| S27E18 | The Child Mothers | Jun 4, 1990 |
| S27E19 | Signs of Life | Jun 11, 1990 |
| S27E20 | AIDS: A Quest for a Cure | Jun 25, 1990 |
Season 28 23 episodes
| Episode | Title | Air date |
|---|
| S28E01 | Sudden Death | Jan 7, 1991 |
| S28E02 | Keen as Mustard | Jan 14, 1991 |
| S28E03 | Smokers Can Harm Your Health | Jan 21, 1991 |
| S28E04 | Coming In from the Cold | Jan 28, 1991 |
| S28E05 | Small Problems with the Mirror | Feb 4, 1991 |
| S28E06 | Two Weeks to Save the Earth | Feb 10, 1991 |
| S28E07 | California Dreaming | Feb 11, 1991 |
| S28E08 | The Day the Earth Melted | Feb 25, 1991 |
| S28E09 | The Curse of Karash | Feb 25, 1991 |
| S28E10 | Playing at Noah | Mar 4, 1991 |
| S28E11 | Cashing in on Paradise | Mar 11, 1991 |
| S28E12 | The Terracotta Time Machine | Mar 18, 1991 |
| S28E13 | Measuring the Roof of the World | Mar 25, 1991 |
| S28E14 | The First Americans | Apr 15, 1991 |
| S28E15 | Inside Chernobyl's Sarcophagus | Apr 22, 1991 |
| S28E16 | Colonising Cyberspace | Apr 29, 1991 |
| S28E17 | Emerging Viruses | May 13, 1991 |
| S28E18 | Camelford - A Bitter Aftertaste | May 20, 1991 |
| S28E19 | Of Big Bangs, Stick Men and Galactic Holes | Jun 3, 1991 |
| S28E20 | Food For Thought | Jun 10, 1991 |
| S28E21 | The Long Road to the West | Jun 17, 1991 |
| S28E22 | Half Hearted About Semi-Skimmed | Jun 24, 1991 |
| S28E23 | T-Rex Exposed | Jul 1, 1991 |
Season 29 19 episodes
| Episode | Title | Air date |
|---|
| S29E01 | The Shadow of Breast Cancer | Jan 6, 1992 |
| S29E02 | Pest Wars | Jan 13, 1992 |
| S29E03 | Molecules With Sunglasses | Jan 20, 1992 |
| S29E04 | In Search of the Noble Savage | Jan 27, 1992 |
| S29E05 | Malaria: Battle of the Merozoites | Feb 3, 1992 |
| S29E06 | The Black Sun | Feb 17, 1992 |
| S29E07 | Hitler's Bomb | Feb 24, 1992 |
| S29E08 | An Expensive Theology | Mar 2, 1992 |
| S29E09 | The Strange Life and Death of Dr. Turing | Mar 9, 1992 |
| S29E10 | Hot Jam in the Doughnut | Mar 16, 1992 |
| S29E11 | A Diet for a Lifetime | Mar 30, 1992 |
| S29E12 | Before Babel | Apr 6, 1992 |
| S29E13 | The Man Who Moved the Mountains | Apr 13, 1992 |
| S29E14 | Iceman | Apr 27, 1992 |
| S29E15 | Taking the Credit | May 11, 1992 |
| S29E16 | Fast Life in the Food Chain | May 18, 1992 |
| S29E17 | Dodging Doomsday | Jun 1, 1992 |
| S29E18 | A Question of Sport... | Jun 8, 1992 |
| S29E19 | Genes R Us | Jun 15, 1992 |
Season 30 21 episodes
| Episode | Title | Air date |
|---|
| S30E01 | Awakening the Frozen Addicts | Jan 4, 1993 |
| S30E02 | Cheating Time | Jan 11, 1993 |
| S30E03 | TB - The Forgotten Plague | Jan 18, 1993 |
| S30E04 | No Ordinary Genius (1) | Jan 25, 1993 |
| S30E05 | No Ordinary Genius (2) | Feb 1, 1993 |
| S30E06 | Mars Alive | Feb 8, 1993 |
| S30E07 | Suggers, Fruggers and Data-Muggers | Feb 15, 1993 |
| S30E08 | The Pyramid Builders | Feb 22, 1993 |
| S30E09 | Here Be Monsters | Mar 1, 1993 |
| S30E10 | Iceman (Update) | Mar 8, 1993 |
| S30E11 | Whatever Happened to Star Wars | Mar 15, 1993 |
| S30E12 | Resurrecting the Dead Sea Scrolls | Mar 22, 1993 |
| S30E13 | Dante Goes to Hell | Mar 29, 1993 |
| S30E14 | Ghosts in the Dinosaur Graveyard | Apr 5, 1993 |
| S30E15 | The New Alchemists | Apr 19, 1993 |
| S30E16 | Allergic to the 20th Century | May 10, 1993 |
| S30E17 | Wot U Looking At? | May 24, 1993 |
| S30E18 | The Electronic Frontier | Jun 7, 1993 |
| S30E19 | A Vital Poison | Jun 14, 1993 |
| S30E20 | Chimp Talk | Jun 21, 1993 |
| S30E21 | Life is Impossible | Jun 28, 1993 |
Season 31 21 episodes
| Episode | Title | Air date |
|---|
| S31E01 | Small Arms, Soft Targets | Jan 10, 1994 |
| S31E02 | The Last Mammoth | Jan 17, 1994 |
| S31E03 | The Man Who Made Up His Mind | Jan 24, 1994 |
| S31E04 | Genie | Jan 31, 1994 |
| S31E05 | Death Wish - The Untold Story | Feb 7, 1994 |
| S31E06 | Air Crash - The Deadly Puzzle | Feb 14, 1994 |
| S31E07 | Hunt for the Doomsday Asteroid | Feb 28, 1994 |
| S31E08 | Hubble Vision | Mar 7, 1994 |
| S31E09 | Some Like iit Hot | Mar 14, 1994 |
| S31E10 | Too Close to the Sun | Mar 21, 1994 |
| S31E11 | Sir Walter's Journey | Mar 28, 1994 |
| S31E12 | After the Flood | Apr 18, 1994 |
| S31E13 | Against The Clock | Apr 25, 1994 |
| S31E14 | The Blueprints of Genocide | May 9, 1994 |
| S31E15 | Ulcer Wars | May 16, 1994 |
| S31E16 | Deaf Whale, Dead Whale | Nov 7, 1994 |
| S31E17 | Whispers of Creation | Nov 14, 1994 |
| S31E18 | The Predator | Nov 21, 1994 |
| S31E19 | Close Encounters | Nov 28, 1994 |
| S31E20 | Orange Sherbet Kisses | Dec 12, 1994 |
| S31E21 | Designer Wines | Dec 19, 1994 |
Season 32 20 episodes
| Episode | Title | Air date |
|---|
| S32E01 | Tibet - The Ice Mother | Jan 9, 1995 |
| S32E02 | Russia's Deep Secrets | Jan 16, 1995 |
| S32E03 | Bones of Contention | Jan 23, 1995 |
| S32E04 | Siamese Twins | Jan 30, 1995 |
| S32E05 | Too Big Too Soon? | Feb 20, 1995 |
| S32E06 | Farewell Fantastic Venus | Feb 27, 1995 |
| S32E07 | Exodus | Mar 6, 1995 |
| S32E08 | The Betrayers | Mar 13, 1995 |
| S32E09 | Icon Earth | Mar 20, 1995 |
| S32E10 | The I-Bomb | Mar 27, 1995 |
| S32E11 | Foetal Attraction | Apr 3, 1995 |
| S32E12 | Cracks in the Crust | Apr 10, 1995 |
| S32E13 | Hearing Voices | Apr 24, 1995 |
| S32E14 | Liar | Oct 30, 1995 |
| S32E15 | The Human Laboratory | Nov 6, 1995 |
| S32E16 | Nanotopia | Nov 13, 1995 |
| S32E17 | Hunt for the Doomsday Asteroid (Update) | Nov 20, 1995 |
| S32E18 | A Code In The Nose | Nov 27, 1995 |
| S32E19 | AIDS: Behind Closed Doors | Dec 4, 1995 |
| S32E20 | The Runaway Mountain | Dec 11, 1995 |
Season 33 16 episodes
| Episode | Title | Air date |
|---|
| S33E01 | The Butchers of Boxgrove | Jan 8, 1996 |
| S33E02 | Fermat's Last Theorem | Jan 15, 1996 |
| S33E03 | A Miracle for Cancer ? | Jan 22, 1996 |
| S33E04 | Nature's Numbers | Jan 29, 1996 |
| S33E05 | The Gene Race | Feb 5, 1996 |
| S33E06 | Masters of the Ionosphere | Feb 12, 1996 |
| S33E07 | Assault on the Male (revisited) | Feb 26, 1996 |
| S33E08 | Death by Design | Mar 4, 1996 |
| S33E09 | The Planet Hunters | Mar 11, 1996 |
| S33E10 | Inside Chernobyl's Sarcophagus (Update) | Mar 25, 1996 |
| S33E11 | Fallout from Chernobyl | Apr 1, 1996 |
| S33E12 | TV is Dead, Long Live TV | Nov 4, 1996 |
| S33E13 | Aliens from Mars | Nov 11, 1996 |
| S33E14 | Living Death | Nov 25, 1996 |
| S33E15 | The Time Lords | Dec 2, 1996 |
| S33E16 | Noah's Flood | Dec 16, 1996 |
Season 34 15 episodes
| Episode | Title | Air date |
|---|
| S34E01 | Psychedelic Science | Feb 27, 1997 |
| S34E02 | Fat Cats, Thin Mice | Mar 6, 1997 |
| S34E03 | Shipwreck | Mar 13, 1997 |
| S34E04 | Genius of the Jet | Mar 20, 1997 |
| S34E05 | Smallpox on Death Row | Mar 27, 1997 |
| S34E06 | Silent Children, New Language | Apr 3, 1997 |
| S34E07 | Turned On by Danger | Apr 17, 1997 |
| S34E08 | A Perfect Oil Spill | Apr 24, 1997 |
| S34E09 | The Great Balloon Race | May 1, 1997 |
| S34E10 | Crater of Death | Sep 11, 1997 |
| S34E11 | Mind Over Body | Sep 18, 1997 |
| S34E12 | Out of Asia | Sep 25, 1997 |
| S34E13 | The Virus that Cures | Oct 9, 1997 |
| S34E14 | The Man Who Lost his Body | Oct 16, 1997 |
| S34E15 | Dawn of the Clone Age | Oct 23, 1997 |
Season 35 18 episodes
| Episode | Title | Air date |
|---|
| S35E01 | Saddam's Secrets | Feb 19, 1998 |
| S35E02 | Dr Miller and the Islanders | Feb 26, 1998 |
| S35E03 | The Rainmaker | Mar 5, 1998 |
| S35E04 | Hopeful Monsters | Mar 19, 1998 |
| S35E05 | The Limits to Birth | Mar 26, 1998 |
| S35E06 | Overkill | Apr 2, 1998 |
| S35E07 | The Curse of Vesuvius | Apr 16, 1998 |
| S35E08 | Mir Mortals | Apr 23, 1998 |
| S35E09 | The Computer that Ate Hollywood | Apr 30, 1998 |
| S35E10 | Magic Bullet | May 7, 1998 |
| S35E11 | The Gulf War Jigsaw | May 14, 1998 |
| S35E12 | Sexual Chemistry | Sep 10, 1998 |
| S35E13 | Chimps on Death Row | Oct 1, 1998 |
| S35E14 | Dinosaurs in Your Garden | Oct 8, 1998 |
| S35E15 | Mosquito! | Oct 15, 1998 |
| S35E16 | The Life and Times of Life and Time | Oct 22, 1998 |
| S35E17 | Thalidomide: A Necessary Evil | Oct 29, 1998 |
| S35E18 | Beyond a Joke | Nov 5, 1998 |
Season 36 14 episodes
| Episode | Title | Air date |
|---|
| S36E01 | From Here to Infinity | Jan 28, 1999 |
| S36E02 | Pandemic | Feb 4, 1999 |
| S36E03 | Elephants or Ivory | Feb 11, 1999 |
| S36E04 | Electric Heart | Feb 18, 1999 |
| S36E05 | Sudden Death | Feb 25, 1999 |
| S36E06 | New Star in Orbit | Mar 11, 1999 |
| S36E07 | New Asteroid Danger | Mar 18, 1999 |
| S36E08 | Skeleton Key | Mar 25, 1999 |
| S36E09 | Wings of Angels | Aug 1, 1999 |
| S36E10 | Mistaken Identity | Nov 11, 1999 |
| S36E11 | Volcanoes of the Deep | Nov 18, 1999 |
| S36E12 | Anatomy of an Avalanche | Nov 25, 1999 |
| S36E13 | The Midas Formula | Dec 2, 1999 |
| S36E14 | Blood and Flowers: In Search of the Aztecs | Sep 9, 1999 |
Season 37 19 episodes
| Episode | Title | Air date |
|---|
| S37E01 | Breath of Life | Jan 12, 2000 |
| S37E02 | The Lost City of Nasca | Jan 20, 2000 |
| S37E03 | The Diamond Makers | Jan 27, 2000 |
| S37E04 | Supervolcanoes | Feb 3, 2000 |
| S37E05 | Miracle In Orbit | Feb 3, 2000 |
| S37E06 | Complete Obsession - Body Dysmorphia | Feb 17, 2000 |
| S37E07 | Is GM Safe? | Mar 9, 2000 |
| S37E08 | Planet Hunters | Mar 16, 2000 |
| S37E09 | Moon Children | Apr 4, 2000 |
| S37E10 | Mega-tsunami: Wave of Destruction | Oct 12, 2000 |
| S37E11 | Conjoined Twins | Oct 19, 2000 |
| S37E12 | The Lost World of Lake Vostok | Oct 26, 2000 |
| S37E13 | Vanished: The Plane that Disappeared | Nov 2, 2000 |
| S37E14 | The Secret Treasures of Zeugma | Nov 9, 2000 |
| S37E15 | Valley of Life or Death | Nov 16, 2000 |
| S37E16 | Extreme Dinosaurs | Nov 23, 2000 |
| S37E17 | Supermassive Black Holes | Nov 30, 2000 |
| S37E18 | The Boy who was Turned into a Girl | Dec 7, 2000 |
| S37E19 | Atlantis Reborn Again | Dec 14, 2000 |
Season 38 11 episodes
| Episode | Title | Air date |
|---|
| S38E01 | The Mystery of the Miami Circle | Jan 25, 2001 |
| S38E02 | The Missing Link | Feb 1, 2001 |
| S38E03 | Killer Algae | Feb 8, 2001 |
| S38E04 | Ecstasy and Agony | Feb 15, 2001 |
| S38E05 | Snowball Earth | Feb 22, 2001 |
| S38E06 | Taming the Problem Child | Mar 6, 2001 |
| S38E07 | The Mystery of the Persian Mummy | Sep 20, 2001 |
| S38E08 | The Ape that Took Over the World | Oct 4, 2001 |
| S38E09 | Life Blood | Oct 11, 2001 |
| S38E10 | The Death Star | Oct 18, 2001 |
| S38E11 | Cloning the First Human | Oct 25, 2001 |
Season 39 18 episodes
| Episode | Title | Air date |
|---|
| S39E01 | Helike - The Real Atlantis | Jan 10, 2002 |
| S39E02 | Volcano Hell | Jan 17, 2002 |
| S39E03 | Fatbusters | Jan 24, 2002 |
| S39E04 | The Lost Pyramids of Caral | Jan 31, 2002 |
| S39E05 | Death of the Iceman | Feb 7, 2002 |
| S39E06 | Parallel Universes | Feb 14, 2002 |
| S39E07 | The Dinosaur that Fooled the World | Feb 21, 2002 |
| S39E08 | The Fall of the World Trade Center | Mar 7, 2002 |
| S39E09 | Archimedes' Secret | Mar 14, 2002 |
| S39E10 | The Mystery of the Jurassic | Mar 28, 2002 |
| S39E11 | Killer Lakes | Apr 4, 2002 |
| S39E12 | The A6 Murder | May 16, 2002 |
| S39E13 | The England Patient | May 23, 2002 |
| S39E14 | Freak Wave | Nov 14, 2002 |
| S39E15 | Stone Age Columbus | Nov 21, 2002 |
| S39E16 | Homeopathy: The Test | Nov 26, 2002 |
| S39E17 | The Day the Earth Nearly Died | Dec 5, 2002 |
| S39E18 | The Secret of El Dorado | Dec 19, 2002 |
Season 40 19 episodes
| Episode | Title | Air date |
|---|
| S40E01 | The Mystery Of Easter Island | Jan 9, 2003 |
| S40E02 | Living Nightmare | Jan 16, 2003 |
| S40E03 | Averting Armageddon | Jan 23, 2003 |
| S40E04 | Dirty Bomb | Jan 30, 2003 |
| S40E05 | Sexual Chemistry (Update) | Feb 13, 2003 |
| S40E06 | The Day We Learned To Think | Feb 20, 2003 |
| S40E07 | Trial and Error | Feb 27, 2003 |
| S40E08 | Earthquake Storms | Mar 6, 2003 |
| S40E09 | Life On Mars (Update) | Mar 27, 2003 |
| S40E10 | The Secret Life Of Caves | Apr 3, 2003 |
| S40E11 | God On The Brain | Apr 17, 2003 |
| S40E12 | Flight 587 | May 8, 2003 |
| S40E13 | SARS: The True Story | May 29, 2003 |
| S40E14 | The Big Chill | Nov 13, 2003 |
| S40E15 | The Bible Code | Nov 20, 2003 |
| S40E16 | Last Flight of the Columbia | Nov 27, 2003 |
| S40E17 | The Hunt for an AIDS Vaccine | Dec 4, 2003 |
| S40E18 | Percy Pilcher's Flying Machine | Dec 11, 2003 |
| S40E19 | Time Trip | Dec 18, 2003 |
Season 41 18 episodes
| Episode | Title | Air date |
|---|
| S41E01 | The Demonic Ape | Jan 8, 2004 |
| S41E02 | The Moscow Theatre Siege | Jan 15, 2004 |
| S41E03 | The Atkins Diet | Jan 22, 2004 |
| S41E04 | Secrets of the Star Disc | Jan 29, 2004 |
| S41E05 | The Dark Secret of Hendrik Schön | Feb 5, 2004 |
| S41E06 | Thalidomide - A Second Chance? | Feb 12, 2004 |
| S41E07 | Diamond Labs | Mar 4, 2004 |
| S41E08 | T-Rex - Warrior or Wimp? | Mar 11, 2004 |
| S41E09 | Project Poltergeist | Mar 18, 2004 |
| S41E10 | The Truth of Troy | Mar 25, 2004 |
| S41E11 | The Truth About Vitamins | Sep 16, 2004 |
| S41E12 | King Solomon's Tablet of Stone | Sep 23, 2004 |
| S41E13 | Derek Tastes of Earwax | Sep 30, 2004 |
| S41E14 | What Really Killed the Dinosaurs? | Oct 7, 2004 |
| S41E15 | Making Millions the Easy Way | Oct 14, 2004 |
| S41E16 | Saturn - Lord of the Rings | Oct 21, 2004 |
| S41E17 | The Hunt for the Supertwister | Oct 28, 2004 |
| S41E18 | Dr Money and the Boy with No Penis | Nov 4, 2004 |
Season 42 20 episodes
| Episode | Title | Air date |
|---|
| S42E01 | Global Dimming | Jan 13, 2005 |
| S42E02 | Einstein's Unfinished Symphony | Jan 20, 2005 |
| S42E03 | Einstein's Equation of Life and Death | Jan 27, 2005 |
| S42E04 | Living with ADHD | Mar 3, 2005 |
| S42E05 | Neanderthal | Feb 10, 2005 |
| S42E06 | An Experiment to Save the World | Feb 17, 2005 |
| S42E07 | Who's Afraid of Designer Babies? | Feb 24, 2005 |
| S42E08 | The Lost Civilisation of Peru | Mar 3, 2005 |
| S42E09 | The Next Megaquake | May 22, 2005 |
| S42E10 | Does the MMR Jab Cause Autism? | May 29, 2005 |
| S42E11 | Malaria: Defeating the Curse | Jun 5, 2005 |
| S42E12 | Tsunami: Naming the Dead | Sep 1, 2005 |
| S42E13 | The Hawking Paradox | Sep 8, 2005 |
| S42E14 | The Mystery of the Human Hobbit | Sep 15, 2005 |
| S42E15 | The Doctor Who Makes People Walk Again? | Oct 6, 2005 |
| S42E16 | Can Fish Make My Child Smart? | Oct 6, 2005 |
| S42E17 | Madagascar - A Treetop Odyssey | Oct 13, 2005 |
| S42E18 | Titan. A Place Like Home? | Nov 10, 2005 |
| S42E19 | The 7/7 Bombers: A Psychological Investigation | Dec 8, 2005 |
| S42E20 | The Ghost in Your Genes | Dec 15, 2005 |
Season 43 19 episodes
| Episode | Title | Air date |
|---|
| S43E01 | Space Tourists | Jan 12, 2006 |
| S43E02 | Waiting for a Heartbeat | Jan 19, 2006 |
| S43E03 | A War on Science | Jan 26, 2006 |
| S43E04 | The Lost City of New Orleans | Feb 2, 2006 |
| S43E05 | Most of Our Universe Is Missing | Feb 9, 2006 |
| S43E06 | Winning Gold in 2012 | Mar 18, 2006 |
| S43E07 | The Woman Who Thinks Like a Cow | Jun 8, 2006 |
| S43E08 | The Genius Sperm Bank | Jun 15, 2006 |
| S43E09 | Bye Bye Planet Pluto | Jun 22, 2006 |
| S43E10 | We Love Cigarettes | Jun 29, 2006 |
| S43E11 | Nuclear Nightmares | Jul 13, 2006 |
| S43E12 | Tutankhamun's Fireball | Jul 20, 2006 |
| S43E13 | Survivors Guide to Plane Crashes | Oct 3, 2006 |
| S43E14 | Chimps are People Too | Oct 10, 2006 |
| S43E15 | The Worlds First Face Transplant | Oct 17, 2006 |
| S43E16 | Human v2.0 | Oct 24, 2006 |
| S43E17 | The Great Robot Race | Oct 31, 2006 |
| S43E18 | Pandemic | Nov 7, 2006 |
| S43E19 | We are the Aliens | Nov 14, 2006 |
Season 44 9 episodes
| Episode | Title | Air date |
|---|
| S44E01 | My Pet Dinosaur | Mar 13, 2007 |
| S44E02 | The Elephant's Guide to Sex | Mar 20, 2007 |
| S44E03 | Prof Regan's Beauty Parlour | Mar 27, 2007 |
| S44E04 | Mad but Glad | Apr 3, 2007 |
| S44E05 | Moon for Sale | Apr 10, 2007 |
| S44E06 | Battle of the Brains | Apr 17, 2007 |
| S44E07 | Skyscraper Fire Fighters | Apr 24, 2007 |
| S44E08 | The Six Billion Dollar Experiment | May 1, 2007 |
| S44E09 | How to Commit the Perfect Murder | May 8, 2007 |
Season 45 17 episodes
| Episode | Title | Air date |
|---|
| S45E01 | How to Kill a Human Being | Jan 15, 2008 |
| S45E02 | Total Isolation | Jan 22, 2008 |
| S45E03 | What on Earth is Wrong With Gravity? | Jan 29, 2008 |
| S45E04 | Is Alcohol Worse than Ecstasy? | Feb 5, 2008 |
| S45E05 | How to Make Better Decisions | Feb 12, 2008 |
| S45E06 | How to Live to be 101 | Feb 19, 2008 |
| S45E07 | Prof. Regan's Supermarket Secrets | Feb 26, 2008 |
| S45E08 | Are we Alone in the Universe? | Mar 4, 2008 |
| S45E09 | How Much is Your Dead Body Worth? | Mar 18, 2008 |
| S45E10 | How Does Your Memory Work? | Mar 25, 2008 |
| S45E11 | The President's Guide to Science | Sep 16, 2008 |
| S45E12 | How Mad Are You? (1 of 2) | Nov 11, 2008 |
| S45E13 | How Mad Are You? (2 of 2) | Nov 18, 2008 |
| S45E14 | Jimmy's GM Food Fight | Nov 25, 2008 |
| S45E15 | Do You Know What Time It Is? | Dec 2, 2008 |
| S45E16 | Allergy Planet | Dec 9, 2008 |
| S45E17 | Where's My Robot? | Dec 16, 2008 |
Season 46 18 episodes
| Episode | Title | Air date |
|---|
| S46E01 | Why Are Thin People Not Fat? | Jan 26, 2009 |
| S46E02 | Cannabis: The Evil Weed? | Feb 3, 2009 |
| S46E03 | Why Do We Dream? | Feb 10, 2009 |
| S46E04 | Can We Make a Star on Earth? | Feb 17, 2009 |
| S46E05 | The Secret Life of Your Bodyclock | Feb 24, 2009 |
| S46E06 | What's the Problem with Nudity? | Mar 3, 2009 |
| S46E07 | How to Survive a Disaster | Mar 10, 2009 |
| S46E08 | Who Do You Want Your Child to Be? | Mar 17, 2009 |
| S46E09 | Why Can't We Predict Earthquakes? | Mar 24, 2009 |
| S46E10 | Alan and Marcus Go Forth and Multiply | Mar 31, 2009 |
| S46E11 | How Violent Are You? | May 12, 2009 |
| S46E12 | Do I Drink Too Much? | Dec 22, 2009 |
| S46E13 | The Secret You | Dec 22, 2009 |
| S46E14 | Fix Me | Dec 22, 2009 |
| S46E15 | Who's Afraid of a Big Black Hole? | Dec 22, 2009 |
| S46E16 | Why Do We Talk? | Dec 22, 2009 |
| S46E17 | How Long is a Piece of String? | Dec 22, 2009 |
| S46E18 | How Many People Can Live on Planet Earth? | Dec 9, 2009 |
Season 47 14 episodes
| Episode | Title | Air date |
|---|
| S47E01 | Do I Drink Too Much? | Oct 13, 2009 |
| S47E02 | The Secret You | Oct 20, 2009 |
| S47E03 | Fix Me | Oct 27, 2009 |
| S47E04 | Who's Afraid of a Big Black Hole? | Nov 3, 2009 |
| S47E05 | Why Do We Talk? | Nov 10, 2009 |
| S47E06 | How Long is a Piece of String? | Nov 17, 2009 |
| S47E07 | The Secret Life of the Dog | Jan 6, 2010 |
| S47E08 | Why Do Viruses Kill? | Jan 13, 2010 |
| S47E09 | Pill Poppers | Jan 20, 2010 |
| S47E10 | Don't Grow Old | Feb 3, 2010 |
| S47E11 | To Infinity and Beyond | Feb 10, 2010 |
| S47E12 | What Makes a Genius? | Feb 17, 2010 |
| S47E13 | Did Cooking Make Us Human? | Mar 2, 2010 |
| S47E14 | Is Everything We Know About the Universe Wrong? | Mar 9, 2010 |
Season 48 15 episodes
| Episode | Title | Air date |
|---|
| S48E01 | Back from the Dead | Sep 27, 2010 |
| S48E02 | The Death of the Oceans? | Oct 4, 2010 |
| S48E03 | What Happened Before the Big Bang? | Oct 11, 2011 |
| S48E04 | Is Seeing Believing? | Oct 18, 2010 |
| S48E05 | Miracle Cure? A Decade of the Human Genome | Oct 25, 2010 |
| S48E06 | Asteroids - The Good, the Bad and the Ugly | Nov 3, 2010 |
| S48E07 | Deepwater Disaster - The Untold Story | Nov 16, 2010 |
| S48E08 | What Is One Degree? | Jan 10, 2011 |
| S48E09 | What Is Reality? | Jan 17, 2011 |
| S48E10 | Science Under Attack | Jan 24, 2011 |
| S48E11 | The Secret World of Pain | Jan 31, 2011 |
| S48E12 | Surviving a Car Crash | Feb 7, 2011 |
| S48E13 | How to Mend a Broken Heart | Feb 14, 2011 |
| S48E14 | Are We Still Evolving? | Mar 1, 2011 |
| S48E15 | Predators in Your Backyard | Mar 8, 2011 |
Season 49 13 episodes
| Episode | Title | Air date |
|---|
| S49E01 | Do You See What I See? | Aug 8, 2011 |
| S49E02 | Seeing Stars | Aug 15, 2011 |
| S49E03 | The Nine Months That Made You | Aug 22, 2011 |
| S49E04 | The Core | Aug 31, 2011 |
| S49E05 | Are You Good or Evil? | Sep 7, 2011 |
| S49E06 | Fukushima: Is Nuclear Power Safe? | Sep 14, 2011 |
| S49E07 | Playing God | Jan 17, 2012 |
| S49E08 | The Truth About Exercise | Feb 28, 2012 |
| S49E09 | Solar Storms: The Threat to Planet Earth | Mar 6, 2012 |
| S49E10 | Out of Control? | Mar 13, 2012 |
| S49E11 | Global Weirding | Mar 27, 2012 |
| S49E12 | The Truth about Fat | Mar 20, 2012 |
| S49E13 | Defeating Cancer | Apr 10, 2012 |
Season 50 16 episodes
| Episode | Title | Air date |
|---|
| S50E01 | The Truth About Looking Young | Jul 23, 2012 |
| S50E02 | Mission to Mars | Jul 30, 2012 |
| S50E03 | Eat, Fast and Live Longer | Aug 6, 2012 |
| S50E04 | How Big Is the Universe? | Aug 27, 2012 |
| S50E05 | How Small Is the Universe? | Sep 3, 2012 |
| S50E06 | Defeating the Superbugs | Sep 10, 2012 |
| S50E07 | The Creative Brain: How Insight Works | Mar 14, 2013 |
| S50E08 | How to Avoid Mistakes in Surgery | Mar 21, 2013 |
| S50E09 | The Truth about Taste | Mar 28, 2013 |
| S50E10 | The Age of Big Data | Apr 4, 2013 |
| S50E11 | The Secret Life of the Cat | Jun 13, 2013 |
| S50E12 | Little Cat Diaries | Jun 14, 2013 |
| S50E13 | Fracking: The New Energy Rush | Jun 19, 2013 |
| S50E14 | Swallowed by a Black Hole | Jun 26, 2013 |
| S50E15 | What Makes us Human? | Jul 3, 2013 |
| S50E16 | The Truth About Personality | Jul 10, 2013 |
Season 51 11 episodes
| Episode | Title | Air date |
|---|
| S51E01 | Monitor Me | Aug 12, 2013 |
| S51E02 | Defeating the Hackers | Aug 19, 2013 |
| S51E03 | Dinosaurs: The Hunt for Life | Aug 26, 2013 |
| S51E04 | Sugar v Fat | Jan 29, 2014 |
| S51E05 | Swallowed by a Sink Hole | Feb 3, 2014 |
| S51E06 | Man on Mars - Mission to the Red Planet | Feb 10, 2014 |
| S51E07 | The Power of the Placebo | Feb 17, 2014 |
| S51E08 | How You Really Make Decisions | Feb 24, 2014 |
| S51E09 | Living with Autism | Apr 1, 2014 |
| S51E10 | Where is Flight MH370? | Jun 17, 2014 |
| S51E12 | What's Wrong with Our Weather? | Jul 17, 2014 |
Season 52 18 episodes
| Episode | Title | Air date |
|---|
| S52E01 | Should I Eat Meat? The Big Health Dilemma | Aug 18, 2014 |
| S52E02 | Should I Eat Meat? How to Feed the Planet | Aug 20, 2014 |
| S52E03 | Allergies: Modern Life and Me | Aug 27, 2014 |
| S52E04 | Inside the Dark Web | Sep 3, 2014 |
| S52E05 | Ebola - The search for a cure | Sep 10, 2014 |
| S52E06 | Is your Brain Male or Female? | Sep 29, 2014 |
| S52E07 | Secrets of the Solar System | Mar 3, 2015 |
| S52E08 | Aftershock: The Hunt for Gravitational Waves | Mar 10, 2015 |
| S52E09 | Dancing in the Dark - The End of Physics? | Mar 17, 2015 |
| S52E10 | 70 Million Animal Mummies: Egypt's Dark Secret | May 11, 2015 |
| S52E11 | Is Binge Drinking Really That Bad? | May 20, 2015 |
| S52E12 | The Trouble with Space Junk | Aug 5, 2015 |
| S52E13 | Are Health Tests Really A Good Idea? | Aug 12, 2015 |
| S52E14 | First Britons | Aug 19, 2015 |
| S52E15 | OCD: A Monster In My Mind | Aug 26, 2015 |
| S52E16 | Which Universe Are We In? | Sep 2, 2015 |
| S52E17 | Cosmic Dawn: The Real Moment of Creation | Sep 9, 2015 |
| S52E18 | Are Video Games Really That Bad? | Sep 16, 2015 |
Season 53 16 episodes
| Episode | Title | Air date |
|---|
| S53E01 | The Immortalist | Mar 16, 2016 |
| S53E02 | Project Greenglow - The Quest for Gravity Control | Mar 23, 2016 |
| S53E03 | The Mystery of Dark Energy | Mar 30, 2016 |
| S53E04 | Oceans of the Solar System | Apr 6, 2016 |
| S53E05 | The End of the Solar System | Apr 13, 2016 |
| S53E06 | Should We Close Our Zoos? | Apr 17, 2016 |
| S53E07 | How to Find Love Online | Apr 25, 2016 |
| S53E08 | Ice Station Antarctica | May 4, 2016 |
| S53E09 | Curing Alzheimer's | May 11, 2016 |
| S53E10 | E-Cigarettes: Miracle or Menace? | May 22, 2016 |
| S53E11 | Why Are We Getting So Fat? | Jun 7, 2016 |
| S53E12 | Sports Doping - Winning At Any Cost? | Jul 19, 2016 |
| S53E13 | Inside CERN | Aug 10, 2016 |
| S53E14 | My Amazing Twin | Aug 25, 2016 |
| S53E15 | The Lost Tribes of Humanity | Oct 12, 2016 |
| S53E16 | The Wildest Weather in the Universe | Oct 23, 2016 |
Season 54 15 episodes
| Episode | Title | Air date |
|---|
| S54E01 | Clean Eating: The Dirty Truth | Jan 19, 2017 |
| S54E02 | Hair Care Secrets | Jan 23, 2017 |
| S54E03 | ADHD and Me with Rory Bremner | Apr 25, 2017 |
| S54E04 | Why Did I Go Mad? | May 2, 2017 |
| S54E05 | Strange Signals from Outer Space! | May 16, 2017 |
| S54E06 | Space Volcanoes | May 23, 2017 |
| S54E07 | Antarctica - Ice Station Rescue | Jun 7, 2017 |
| S54E08 | Cyber Attack - The Day the NHS Stopped | Jun 12, 2017 |
| S54E09 | 10 Things You Need to Know About the Future | Jun 19, 2017 |
| S54E10 | Dawn of the Driverless Car | Jun 29, 2017 |
| S54E11 | Dippy and the Whale | Jul 13, 2017 |
| S54E12 | What Makes a Psychopath? | Aug 29, 2017 |
| S54E13 | Mars - A Traveller's Guide | Sep 12, 2017 |
| S54E14 | Goodbye Cassini - Hello Saturn | Sep 18, 2017 |
| S54E15 | Being Transgender | Sep 26, 2017 |
Season 55 13 episodes
| Episode | Title | Air date |
|---|
| S55E01 | My Amazing Brain: Richard's War | Feb 5, 2018 |
| S55E02 | Teenagers vs Cancer: A User's Guide | Jun 26, 2018 |
| S55E03 | How to Build a Time Machine | Jul 10, 2018 |
| S55E04 | Spina Bifida & Me | Jul 26, 2018 |
| S55E05 | Jupiter Revealed | Aug 7, 2018 |
| S55E06 | Stopping Male Suicide | Aug 22, 2018 |
| S55E07 | A Week Without Lying - The Honesty Experiment | Aug 29, 2018 |
| S55E08 | The Placebo Experiment: Can My Brain Cure My Body? | Oct 4, 2018 |
| S55E09 | Body Clock: What Makes Us Tick? | Oct 11, 2018 |
| S55E10 | Avalanche: Making a Deadly Snowstorm | Oct 18, 2018 |
| S55E11 | Vitamin Pills: Miracle or Myth? | Oct 25, 2018 |
| S55E12 | Diagnosis on Demand? The Computer Will See You Now | Nov 1, 2018 |
| S55E13 | The Contraceptive Pill: How Safe Is It? | Nov 21, 2018 |
Season 56 6 episodes
| Episode | Title | Air date |
|---|
| S56E01 | We Need to Talk about Death | Jan 23, 2019 |
| S56E02 | Britain's Next Air Disaster? Drones | Jul 1, 2019 |
| S56E03 | The Honest Supermarket: What’s Really in Our Food? | Jul 8, 2019 |
| S56E04 | Inside the Social Network: Facebook's Difficult Year | Jul 16, 2019 |
| S56E05 | The 250 Million Pound Cancer Cure | Jul 22, 2019 |
| S56E06 | Cannabis: Miracle Medicine or Dangerous Drug? | Aug 28, 2019 |
Season 57 8 episodes
| Episode | Title | Air date |
|---|
| S57E01 | Addicted to Painkillers? Britain's Opioid Crisis | Jan 16, 2020 |
| S57E02 | Chris Packham: 7.7 Billion People And Counting | Jan 23, 2020 |
| S57E03 | Toxic Town: The Corby Poisonings | Mar 23, 2020 |
| S57E04 | The Restaurant that Burns Off Calories | Apr 20, 2020 |
| S57E05 | Hubble: The Wonders of Space Revealed | Apr 24, 2020 |
| S57E06 | The Great British Intelligence Test | May 4, 2020 |
| S57E07 | What's the Matter with Tony Slattery | May 21, 2020 |
| S57E08 | Pluto: Back From the Dead | Jul 6, 2020 |
Season 58 4 episodes
| Episode | Title | Air date |
|---|
| S58E01 | Feast to Save the Planet | Jan 4, 2021 |
| S58E02 | The Secret Science of Sewage | Mar 18, 2021 |
| S58E03 | Dolly: The Sheep That Changed the World | Nov 23, 2021 |
| S58E04 | The Vaccine | Jul 8, 2021 |
Season 59 4 episodes
| Episode | Title | Air date |
|---|
| S59E01 | How to Sleep Well with Michael Mosley | Mar 31, 2022 |
| S59E02 | Fergal Keane: Living with PTSD | May 9, 2022 |
| S59E03 | Making Sense of Cancer with Hannah Fry | Jun 2, 2022 |
| S59E04 | Super Telescope: Mission to the Edge of the Universe | Jul 14, 2022 |
Season 60 1 episode
| Episode | Title | Air date |
|---|
| S60E01 | The Battle to Beat Malaria | Jul 22, 2024 |
Season 61 4 episodes
| Episode | Title | Air date |
|---|
| S61E01 | Confessions of a Brain Surgeon | Aug 18, 2025 |
| S61E02 | Disease X: Hunting the Next Pandemic | Sep 22, 2025 |
| S61E03 | Secrets of The Brain (1) | Sep 29, 2025 |
| S61E04 | Secrets of the Brain (2) | Oct 6, 2025 |
Season 62 1 episode
| Episode | Title | Air date |
|---|
| S62E01 | Artemis: To the Moon and Back | Apr 15, 2026 |
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