- Series 1
- s01e01 - 2009-11-30 - Science and Comedians
- s01e02 - 2009-12-07 - Extraterrestrial Life
- s01e03 - 2009-12-14 - Quantum Physics
- s01e04 - 2009-12-21 - Science and Religion
- Series 2
- s02e01 - 2010-06-14 - Popular Science
- s02e02 - 2010-06-21 - Trust Me, I'm a Scientist
- s02e03 - 2010-06-28 - Science Fiction, Science Fact
- s02e04 - 2010-07-05 - Things Can Only Get Better
- Series 3
- s03e01 - 2010-11-15 - Apocalypse
- s03e02 - 2010-11-22 - Modern World
- s03e03 - 2010-12-29 - Randomness
- s03e04 - 2010-12-06 - Philosophy
- Series 4
- s04e01 - 2011-05-30 - hat Don't We Know
- s04e02 - 2011-06-06 - Six Degrees
- s04e03 - 2011-06-13 - So You Want to Be an Astronaut
- s04e04 - 2011-06-20 - Is Cosmology Really a Science
- s04e05 - 2011-06-27 - Is There Room for Mysticism in a Rational World
- s04e06 - 2011-07-05 - Science vs the Supernatural - Does Science Kill the Magic
- Series 5
- s05e01 - 2011-11-21 - What's the North Ever Done For Us
- s05e02 - 2011-11-28 - A Balanced Programme on Balance
- s05e03 - 2011-12-05 - The Origins of Life
- s05e04 - 2011-12-12 - 2011-12-12 - The Science of Sound
- s05e05 - 2011-12-19 - I'm a Chemist Get Me Out of Here
- s05e06 - 2011-12-26 - The Science of Christmas
- Series 6
- s06e01 - 2012-06-18 - Oceans - The Last Great Unexplored Frontier
- s06e02 - 2012-06-25 - Science Mavericks
- s06e03 - 2012-07-02 - Does Size Matter
- s06e04 - 2012-07-09 - The Science of Symmetry
- s06e05 - 2012-07-16 - Parallel Universes
- s06e06 - 2012-07-23 - Science v Art
- Series 7
- s07e01 - 2012-11-19 - Space Exploration
- s07e02 - 2012-11-26 - Improbable Science
- s07e03 - 2012-12-03 - Secret Science
- s07e04 - 2012-12-10 - Brain Science
- s07e05 - 2012-12-17 - Creating Life
- s07e06 - 2012-12-24 - Christmas Special - The Science of Christmas Behaviour
- Series 8
- s08e01 - 2013-06-24 - What Is Death
- s08e02 - 2013-07-01 - Glastonbury
- s08e03 - 2013-07-08 - Space Tourism
- s08e04 - 2013-07-15 - What Makes a Science a Science
- s08e05 - 2013-07-22 - Alfred Russel Wallace
- s08e06 - 2013-07-29 - Science Museum
- Series 9
- s09e01 - 2013-11-18 - Risk
- s09e02 - 2013-11-25 - Through the Doors of Perception
- s09e03 - 2013-12-02 - Science Rocks
- s09e04 - 2013-12-09 - To Infinity and Beyond
- s09e05 - 2013-12-16 - Should We Pander to Pandas
- s09e06 - 2013-12-23 - Science and Spin
- s09eSP1 - 2014-03-10 - Brian and Robin's Infinite Inbox
- Series 10
- s10e01 - 2014-07-07 - Numbers Numbers Everywhere
- s10e02 - 2014-07-14 - Are Humans Uniquely Unique
- s10e03 - 2014-07-21 - Does Science Need War
- s10e04 - 2014-07-28 - Can Science Save Us
- s10e05 - 2014-08-04 - Before the Big Bang
- s10e06 - 2014-08-11 - Irrationality
- s10eSP1 - 2014-12-25 - 2014 Christmas Special
- Series 11
- s11e01 - 2015-01-19 - Deception
- s11e02 - 2015-01-26 - Fierce Creatures
- s11e03 - 2015-02-02 - Solar System
- s11e04 - 2015-02-09 - When Quantum Goes Woo
- s11e05 - 2015-02-16 - What's the Point of Plants
- s11e06 - 2015-02-23 - Serendipity
- Series 12
- s12e01 - 2015-07-06 - The Infinite Monkey Cage USA Tour - New York
- s12e02 - 2015-07-13 - The Infinite Monkey Cage USA Tour - Los Angeles
- s12e03 - 2015-07-20 - The Infinite Monkey Cage USA Tour - Chicago
- s12e04 - 2015-07-27 - The Infinite Monkey Cage USA Tour - San Francisco
- s12e05 - 2015-08-03 - Speed
- s12e06 - 2015-08-10 - Forensic Science
- s12eSP1 - 2015-12-08 - An Infinite Monkey's Guide to General Relativity - Episode 1
- s12eSP2 - 2015-12-15 - An Infinite Monkey's Guide to General Relativity - Episode 2
- s12eSP3 - 2015-12-25 - 2015 Christmas Special
- Series 13
- s13e01 - 2016-01-11 - Artificial Intelligence
- s13e02 - 2016-01-18 - What Is Race
- s13e03 - 2016-01-25 - Invisible Universe
- s13e04 - 2016-02-01 - What Is Reality
- s13e05 - 2016-02-08 - Maths of Love and Sex
- s13e06 - 2016-02-15 - Climate Change
- s13eSP1 - 2016-02-25 - Brian and Robin's Infinite Inbox
- Series 14
- s14e01 - 2016-07-04 - The Sound of Music
- s14e02 - 2016-07-11 - The Recipe to Build a Universe
- s14e03 - 2016-07-18 - Science of Sleep
- s14e04 - 2016-07-25 - Battle of the Sexes
- s14e05 - 2016-08-01 - 200 Years of Frankenstein
- s14e06 - 2016-08-08 - The Universe - What Remains to Be Discovered
- s14eSP1 - 2016-12-27 - 2016 Christmas Special
- Series 15
- s15e01 - 2017-01-16 - The Science of Everyday Life
- s15e02 - 2017-01-23 - How to Beat the House and Win at Games
- s15e03 - 2017-01-30 - Science's Epic Fails
- s15e04 - 2017-02-06 - Oceans - What Remains to Be Discovered
- s15e05 - 2017-02-13 - The Human Story - How We Got Here and Why We Survived
- s15e06 - 2017-02-20 - Making the Invisible Visible
- Series 16
- s16e01 - 2017-07-03 - What Particles Remain to Be Discovered
- s16e02 - 2017-07-10 - Astronaut Special
- s16e03 - 2017-07-17 - Oxygen - A Matter of Life or Death
- s16e04 - 2017-07-24 - Will Insects Inherit the Earth
- s16e05 - 2017-07-31 - Are We Living in a Simulation
- s16e06 - 2017-08-07 - The Mind v the Brain
- Series 17
- s17e01 - 2018-01-08 - When Two Stars Collide
- s17e02 - 2018-01-15 - The Secret Life of Birds
- s17e03 - 2018-01-22 - Antibiotics
- s17e04 - 2018-01-29 - Teenage Brain
- s17e05 - 2018-02-05 - How Animals Behave
- s17e06 - 2018-02-12 - Volcanoes
- s17eSP1 - 2018-01-01 - 2017 Christmas Special - The Science of Magic
- Series 18
- s18e01 - 2018-07-16 - Big Data
- s18e02 - 2018-07-23 - Invasion!
- s18e03 - 2018-07-30 - Immune System
- s18e04 - 2018-08-06 - The Human Voice
- s18e05 - 2018-08-13 - GCHQ
- s18eSP1 - 2018-08-09 - 100th Episode
- s18eSP2 - 2018-07-11 - TV Version of 100th Episode
- s18eSP3 - 2018-08-09 - Special Bonus Edition
- Series 19
- s19e01 - 2019-01-07 - Microbes - Secret Rulers of the World
- s19e02 - 2019-01-14 - The Future of Humanity
- s19e03 - 2019-01-21 - The Origin of Numbers
- s19e04 - 2019-01-28 - Are Humans Still Evolving
- s19e05 - 2019-02-04 - How to Build a Bionic Human
- s19e06 - 2019-02-11 - How We Measure the Universe
- s19eSP1 - 2019-07-26 - The Infinite Moonkey Cage - 50th Anniversary of First Moon Landing
- Series 20
- s20e01 - 2019-09-16 - Dinosaurs
- s20e02 - 2019-09-23 - Clever Creatures
- s20e03 - 2019-09-30 - The Science of Dreaming
- s20e04 - 2019-10-07 - The Anniversary of the Periodic Table
- s20e05 - 2019-10-14 - Brits in Space
- Series 21
- s21e01 - 2020-01-13 - The Science of Laughter
- s21e02 - 2020-01-20 - Conspiracy Theories
- s21e03 - 2020-01-27 - Coral Reefs
- s21e04 - 2020-02-03 - Fire
- s21e05 - 2020-02-10 - Quantuum Worlds
- s21eSP1 - 2020-02-12 - TV Version of Lucy Beaumont's Close Encounters
- s21e06 - 2020-02-17 - UFO Special
- s21eSP2 - 2020-02-18 - Lucy Beaumont's Close Encounters - Excerpt From UFO Special
- s21eSP3 - 2020-04-18 - TV Version of UFO Special
- Series 22
- s22e01 - 2020-05-25 - The End of the Universe
- s22e02 - 2020-06-01 - Black Holes
- s22e03 - 2020-06-08 - Space Archaeology
- s22e04 - 2020-06-15 - An Astronaut's Guide to Isolation
- s22e05 - 2020-06-22 - The Sun
- s22e06 - 2020-06-29 - When the Monkeys Met the Chimps
- s22e07 - 2020-07-06 - Does Time Exist
- s22e08 - 2020-07-13 - The Human Brain
- s22e09 - 2020-07-20 - What Is Life
- Series 23
- s23e01 - 2021-01-11 - In Praise of Flies
- s23e02 - 2021-01-18 - Under Our Night Sky
- s23e03 - 2021-01-25 - Neanderthals
- s23e04 - 2021-02-01 - The Science of Cooking
- s23e05 - 2021-02-08 - The Fundamentals of Reality
- s23e06 - 2021-02-15 - A History of Rock
- Series 24
- s24e01 - 2022-06-25 - Bats v Flies
- s24e02 - 2022-07-02 - Exploring the Deep
- s24e03 - 2022-07-09 - The Wood Wide Web
- s24e04 - 2022-07-16 - Black Holes
- s24e05 - 2022-07-23 - Astronauts
- s24e06 - 2022-07-30 - Brains
- s24e07 - 2022-08-06 - How to Teach Maths
- Series 25
- s25e01 - 2022-11-12 - What Have We Leant From Covid
- s25e02 - 2022-11-19 - Exploring Our Solar System
- s25e03 - 2022-11-26 - Hunting For Exoplanets
- s25e04 - 2022-12-03 - Can We Cure Ageing
- s25e05 - 2022-12-10 - The Age of Conspiracy
- s25e06 - 2022-12-17 - The Deep Space Network
- s25e07 - 2022-12-24 - Why Does Wine Taste Good
- Series 26
- s26e01 - 2023-02-18 - Southern Skies
- s26e02 - 2023-02-25 - Australia's Scary Spiders
- s26e03 - 2023-03-04 - How to Think Like a Mathematician
- s26e04 - 2023-03-11 - How to Commit the Perfect Murder
- s26e05 - 2023-03-18 - How Far Can the Human Body Go
- s26e06 - 2023-03-25 - Magic Materials
- Series 27
- s27e01 - 2023-06-24 - Are We What We Eat
- s27e02 - 2023-07-01 - Supervolcanoes
- s27e03 - 2023-07-08 - Bees v Wasps
- s27e04 - 2023-07-15 - The Magic of Mushrooms
- s27e05 - 2023-07-22 - The Secret Life of Sharks
- s27e06 - 2023-07-29 - Ancient DNA Secrets
- s27e07 - 2023-08-05 - Cosmic Dust
- Series 28
- s28e01 - 2023-11-11 - Octopuses
- s28e02 - 2023-11-18 - The Science of Coincidence
- s28e03 - 2023-11-25 - How I Is AI
- s28e04 - 2023-12-02 - The Scale of Life (or Were Dinosaurs Just Too Big)
- s28e05 - 2023-12-09 - Hollywood in Space
- s28e06 - 2023-12-16 - Jo Brand's Quantum World
- s28e07 - 2023-12-23 - The Monkeys Meet the Sky at Night
- Series 29
- s29e01 - 2024-02-17 - Egyptian Mummies
- s29e02 - 2024-02-24 - Could it Be Magic
- s29e03 - 2024-03-02 - Asteroids
- s29e04 - 2024-03-09 - Poison
- s29e05 - 2024-03-16 - Cats v Dogs
- s29e06 - 2024-03-23 - Higgs Boson
- Series 30
- s30e01 - 2024-07-11 - The Wonder of Trees
- s30e02 - 2024-07-18 - The Science of Board Games
- s30e03 - 2024-07-25 - Beastly Bodies Kids Special
- s30e04 - 2024-08-01 - Extreme Exploration
- s30e05 - 2024-08-08 - What a Gas
- s30e06 - 2024-08-15 - An Unexpected History of Science
- s30e07 - 2024-08-22 - Alien Life
- Series 31
- s31e01 - 2024-11-16 - The Cyber Codebreakers
- s31e02 - 2024-11-23 - Hedgehogs
- s31e03 - 2024-11-30 - Starless World
- s31e04 - 2024-12-07 - The Science of Baby Making
- s31e05 - 2024-12-12 - Fantastic Elastic
- s31e06 - 2024-12-19 - Is Extinction the End
- s31e07 - 2024-12-26 - An Unexpected History of the Body