- Pilot Episode
- s00e00 - 2006-10-19 - Hair, Football, Cats, Bees
- Series 1
- s01e01 - 2007-04-23 - Cats, Michael Jackson, Beards, Coffee
- s01e02 - 2007-04-30 - Human Body, Coca-Cola, Morris Dancing, Carrots
- s01e03 - 2007-05-07 - Chickens, London Underground, Queen Elizabeth I, Ancient Egyptians
- s01e04 - 2007-05-14 - George W. Bush, Women, Ants, Olympic Games
- s01e05 - 2007-05-21 - Bras, Hemp, Barcodes, Queen Elizabeth II
- s01e06 - 2007-05-28 - Denmark, Rats, Prince Philip, Trousers
- Series 2
- s02e01 - 2008-05-05 - Bears, Beards, Queen Victoria, Tennis
- s02e02 - 2008-05-12 - Toilets, Cows, Sandwiches, Giraffes
- s02e03 - 2008-05-19 - Hedgehogs, Hair, Kissing, Potatoes
- s02e04 - 2008-05-26 - Skateboards, William Shakespeare, Frogs, Bananas
- s02e05 - 2008-06-02 - Beds, Sweden, Leonardo da Vinci, Pigs
- s02e06 - 2008-06-09 - Fleas, Napoleon Bonaparte, Left-handedness, Marriage
- s02eSP - 2008-12-15 - Christmas Trees, Charles Dickens, Turkeys, Father Christmas
- Series 3
- s03e01 - 2009-03-23 - Bicycles, Albert Einstein, Money, Penguins
- s03e02 - 2009-03-30 - Dogs, Iceland, Football, Prince Charles
- s03e03 - 2009-04-06 - China, The Postal Service, Moustaches, The Moon
- s03e04 - 2009-04-13 - Smiling, Charles Darwin, Cucumbers, Dolphins
- s03e05 - 2009-04-20 - Henry VIII, Cockroaches, Dancing, Cricket
- s03e06 - 2009-04-27 - The Brain, Umbrellas, Alcohol, Cheese
- Series 4
- s04e01 - 2009-10-05 - Golf, Cats, Tea, Adolf Hitler
- s04e02 - 2009-10-12 - Baldness, Winston Churchill, Urine, Dwarves
- s04e03 - 2009-10-19 - Teeth, Underpants, The Vikings, Birmingham
- s04e04 - 2009-10-26 - Milk, Julius Caesar, Kissing, Kangaroos
- s04e05 - 2009-11-02 - Tobacco, Sausages, Frogs, Elvis Presley
- s04e06 - 2009-11-09 - Ludwig van Beethoven, Wigs, Honey, The Telephone
- s04eSP - 2009-12-28 - Snow, Tax, Champagne, Tigers
- Series 5
- s05e01 - 2010-03-29 - Childbirth, Beer, Sleep, Sir Isaac Newton
- s05e02 - 2010-04-05 - Hats, Pigeons, Hairdressers, Admiral Horatio Nelson
- s05e03 - 2010-04-12 - Skiing, Cleopatra, Elephants, Chocolate
- s05e04 - 2010-04-19 - Soap, Pudding, Rabbits, Taxis
- s05e05 - 2010-04-26 - Ostriches, Toast, Red, Spectacles
- s05e06 - 2010-05-03 - Ducks, Wolfgang Amadeus Mozart, Make-up, Thomas Edison
- Series 6
- s06e01 - 2010-09-27 - Henry Ford, Biscuits, Rain, Squirrels
- s06e02 - 2010-10-04 - Nudity, Shoes, Walt Disney, Cakes
- s06e03 - 2010-10-11 - Spiders, Mushrooms, Eggs, Edinburgh
- s06e04 - 2010-10-18 - Clocks & Watches, Funerals, Goldfish, Joseph Stalin
- s06e05 - 2010-10-25 - Noses, Apples, Lord Byron, Fishing
- s06e06 - 2010-11-01 - Bells, Mrs. Beeton, Donkeys, The Police
- Series 7
- s07e01 - 2011-04-04 - Flies, Breasts, Enid Blyton, Curry
- s07e02 - 2011-04-11 - Dogs, The Sun, Lewis Carroll, Lobsters
- s07e03 - 2011-04-18 - Mice, Television, Sir Walter Raleigh, Soup
- s07e04 - 2011-04-25 - Dieting, Snakes, Eyes, Cutlery
- s07e05 - 2011-05-02 - Sheep, Furniture, Ancient Greeks, Sir Arthur Conan Doyle
- s07e06 - 2011-05-09 - Badgers, Ears, Divorce, Ice Cream
- Series 8
- s08e01 - 2011-12-26 - Reindeer, Pantomime, Christmas Decorations, Boxes
- s08e02 - 2012-01-02 - The Olympics, Blood, Bees, Butter
- s08e03 - 2012-01-09 - Hamburgers, Snoring, Crocodiles, Pens
- s08e04 - 2012-01-16 - Boy Scouts, Nuts, Florence Nightingale, Circuses
- s08e05 - 2012-01-23 - The Romans, Chickens, Sweets & Confectionery, Competitions
- s08e06 - 2012-01-30 - The Radio, Pasta, Flowers, Wool
- Series 9
- s09e01 - 2012-04-02 - Parrots, Breakfast, Insurance, Oliver Cromwell
- s09e02 - 2012-04-09 - Smoking, Football, China, Pandas
- s09e03 - 2012-04-16 - Swimming, Bread, Hotels, Foxes
- s09e04 - 2012-04-23 - Barbie, Restaurants, Feet, Garlic
- s09e05 - 2012-04-30 - Bats, Cars, Dr. Johnson, Oranges
- s09e06 - 2012-05-07 - Goats, Singing, Glue, Painting
- Series 10
- s10e01 - 2012-12-31 - Pies, Dancing, Worms, James Bond
- s10e02 - 2013-01-07 - Wine, Queen Elizabeth II, Bathtubs, Wind
- s10e03 - 2013-01-14 - Boris Johnson, Computers, Oscar Wilde, Wasps
- s10e04 - 2013-01-21 - Gambling, Teeth, Tortoises & Turtles, Lemons
- s10e05 - 2013-01-28 - Tomatoes, Koalas, Boats, Cheese
- s10e06 - 2013-02-04 - Simon Cowell, Beards, Camels, Germany
- Series 11
- s11e01 - 2013-04-08 - Sharks, Photography, Sugar, Jeremy Clarkson
- s11e02 - 2013-04-15 - Moles, Cabbages, Trains, BBC
- s11e03 - 2013-04-22 - Monkeys, Fingers, Windows, Horns
- s11e04 - 2013-04-29 - Geese, Horses, Advertising, Madonna
- s11e05 - 2013-05-06 - Octopuses, Aeroplanes, Armadillos, Socks
- s11e06 - 2013-05-13 - The French, Lions, Grass, Pianos
- Series 12
- s12e01 - 2013-12-30 - Poison, Etiquette, Jelly, David Mitchell
- s12e02 - 2014-01-06 - Eton, Babies, Russia, Hats
- s12e03 - 2014-01-13 - Trees, Spain, Doctors, Newspapers
- s12e04 - 2014-01-20 - Women, Japan, Owls, Potatoes
- s12e05 - 2014-01-27 - Board games, Salt, Guinea pigs, Actors
- s12e06 - 2014-02-03 - The Clergy, Beetles, Novels, The British
- Series 13
- s13e01 - 2014-04-07 - Birds, Witches, Pubs, Shoes
- s13e02 - 2014-04-14 - Whales, Canada, Pigs, Buses
- s13e03 - 2014-04-21 - Legs, The Internet, Dogs, The Middle Ages
- s13e04 - 2014-04-28 - Wales, The Mouth, Fish, Perfume
- s13e05 - 2014-05-05 - The Brain, The Victorians, Toads, Cooking
- s13e06 - 2014-05-12 - School, Bears, Underwear, Bottles
- Series 14
- s14e01 - 2014-12-29 - Penguins, Spoons, Dolls, Letters
- s14e02 - 2015-01-05 - Ireland, Rules, London, Beavers
- s14e03 - 2015-01-12 - Death, Balloons, Farming, Jane Austen
- s14e04 - 2015-01-19 - Ancient Egypt, Ice, Rubbish, British food
- s14e05 - 2015-01-26 - Fakes, Holes, Cats, Marie Antoinette
- s14e06 - 2015-02-02 - Fat, Smells, Shopping, Gardens
- Series 15
- s15e01 - 2015-08-24 - Magic, Austria, Swans, Onions
- s15e02 - 2015-08-31 - Pets, Bacteria, Zombies, Water
- s15e03 - 2015-09-07 - Zoos, Theft, Phones, Hands
- s15e04 - 2015-09-14 - Princesses, Diets, Sauces, Paper
- s15e05 - 2015-09-21 - Yorkshire, Soft drinks, Skin, Pirates
- s15e06 - 2015-09-28 - IKEA, Marriage, Switzerland, Chewing gum
- Series 16
- s16e01 - 2016-04-04 - Milk, Tattoos, Supermarkets, Vladimir Putin
- s16e02 - 2016-04-11 - Kitchens, Pigeons, Breakfast cereal, The Vatican
- s16e03 - 2016-04-18 - The 1970s, The Moon, Toys, Electricity
- s16e04 - 2016-04-25 - Jokes, Ghosts, Reality TV, Lego
- s16e05 - 2016-05-02 - Funerals, British aristocracy, Nudity, Rubber
- s16e06 - 2016-05-09 - Gifts, Fashion, Women, Songs
- Series 17
- s17e01 - 2016-10-03 - Mosquitoes, Flags, Roads, North Korea
- s17e02 - 2016-10-10 - Tom Cruise, Basketball, Wood, McDonald's
- s17e03 - 2016-10-17 - Chairs, Medicine, Prisons, Video games
- s17e04 - 2016-10-24 - Australia, Leather, Oil, Crisps
- s17e05 - 2016-10-31 - Donald Drumpf, Musicals, Weddings, Oxbridge
- s17e06 - 2016-11-07 - Spies, Fire, Norfolk, The Beatles
- Series 18
- s18e01 - 2017-04-03 - Sheep, Islands, Steve Jobs, Beans
- s18e02 - 2017-04-10 - Names, Germany, Secrets, Nudity
- s18e03 - 2017-04-17 - Bicycles, Wine, Trees, Chocolate
- s18e04 - 2017-04-24 - Colour, Vegetables, Pizzas, Carpets
- s18e05 - 2017-04-01 - Ducks, Oliver Cromwell, Words, Astronauts
- s18e06 - 2017-05-08 - Delia Smith, Robots, Rain, Facebook
- Series 19
- s19e01 - 2017-10-02 - Cows, Arnold Schwarzenegger, Students, Dolphins
- s19e02 - 2017-10-09 - Sugar, Chickens, Aeroplanes, Kanye West
- s19e03 - 2017-10-16 - Dinosaurs, People's Republic of China, Cake, Bees
- s19e04 - 2017-10-23 - Boxing, Snails, Bras, Parents
- s19e05 - 2017-10-30 - Twins, Sean Connery, Golf, Photography
- s19e06 - 2017-11-06 - Doughnuts, Jellyfish, Twitter, Star Wars
- Series 20
- s20e01 - 2018-04-02 - The Police, Submarines, Books, Spiders
- s20e02 - 2018-04-09 - Google, Rugby, Bananas, Crabs
- s20e03 - 2018-04-16 - Rabbits, Inventions, Butterflies, Drugs
- s20e04 - 2018-04-23 - The Rolling Stones, Vegetarianism, Eggs, Harry Potter
- s20e05 - 2018-04-30 - Buses, Dancing, Monkeys, Statues
- s20e06 - 2018-05-07 - Walking, NASA, Soap operas, Poets
- Series 21
- s21e01 - 2018-12-24 - Denmark, Hair, Smells, Fish
- s21e02 - 2018-12-31 - Sleep, Mobile Phones, Stealing, Pets
- s21e03 - 2019-01-07 - Drunkenness, Passports, Orange, The Weather
- s21e04 - 2019-01-14 - Holidays, Queens, Teeth, Ants
- s21e05 - 2019-01-21 - Nuts, Birds, Urine, Traditions
- s21e06 - 2019-01-28 - Houses of Parliament, Wolves, Trains, Punishments
- Series 22
- s22e01 - 2019-04-01 - Mice, Las Vegas, Beyoncé, Rubbish
- s22e02 - 2019-04-08 - Swimming, Mothers, Magazines, Clowns
- s22e03 - 2019-04-15 - Germany, Babies, Trousers, Beards
- s22e04 - 2019-04-22 - Names, Frogs, Paper, Parrots
- s22e05 - 2019-04-29 - Kings, Snakes, Make Up, Hats
- s22e06 - 2019-05-06 - Time, Driving, The Spice Girls, Scotland
- Series 23
- s23e01 - 2019-12-30 - Dogs, Actors, Rules, Finland
- s23e02 - 2020-01-06 - Flowers, Rappers, Cheese, Winston Churchill
- s23e03 - 2020-01-13 - Rats, The Netherlands, The Human Body, Chocolate
- s23e04 - 2020-01-20 - Words, Elvis, Education, Ferrets
- s23e05 - 2020-01-27 - Names, Bob Dylan, Superheroes, Meat
- s23e06 - 2020-02-03 - Vikings, Language, Kissing, Religion
- Series 24
- s24e01 - 2020-06-15 - Musical Instruments, Recipes, Pets, Women
- s24e02 - 2020-06-22 - Country & Western Music, Jobs, Sharks, The Nineteen Seventies
- s24e03 - 2020-06-29 - Furniture, Birthdays , Phobias , Rocks or Stones
- s24e04 - 2020-07-06 - Bread, Abba, Men, Experiments
- s24e05 - 2020-07-13 - Guns, Magic, Berries, Crocodiles
- s24e06 - 2020-07-20 - Poison, Heavy Metal, Painters, Winter Sports
- Series 25
- s25e01 - 2021-01-11 - London, Names, Divorce, Bats
- s25e02 - 2021-01-18 - Bananas, Squid, Vegetarians, Eurovision
- s25e03 - 2021-01-25 - Marriage, Rabbits, Crisps
- s25e04 - 2021-02-01 - Glasgow, Religion, Spying, Puppets
- s25e05 - 2021-02-08 - Goats, Sound, Fighting, Ghosts
- s25e06 - 2021-02-15 - Horses, Valentine's Day, Nudity
- Series 26
- s26e01 - 2021-07-26 - The Ancient Romans, Tea, Crustaceans, Balls
- s26e02 - 2021-08-02 - Snails, Wives, Germs or Microbes, Biscuits or Cookies
- s26e03 - 2021-08-09 - Dolls, Laughter, Tennis, Philosophers
- s26e04 - 2021-08-16 - Insects, Words, Parties, Supermarkets
- s26e05 - 2021-08-23 - Children, Milk, Monkeys, Mushrooms
- s26e06 - 2021-08-30 - Singing, Shopping, Moths, Football
- Series 27
- s27e01 - 2022-01-10 - The Sausage, Camels, Underwear, Pigs
- s27e02 - 2022-01-17 - Shoes, Metal, Diets, Beer
- s27e03 - 2022-01-24 - Jackie Chan, Blood, Marsupials, Beds
- s27e04 - 2022-01-31 - Dogs, Bicycles, Death, Mistakes
- s27e05 - 2022-02-07 - Cars, Tomatoes, The Donkey, Coca-Cola
- s27e06 - 2022-02-14 - Alexander the Great, Squirrels, China, Spectacles or Glasses
- Series 28
- s28e01 - 2022-04-04 - Essex, Candles, Advertising, Water
- s28e02 - 2022-04-11 - The Window, Ants, Rice, The Ancient Egyptians
- s28e03 - 2022-04-18 - Computers, Magazines, The Human Body, Golf
- s28e04 - 2022-04-25 - Hair, South Korea, Scouting, Nicholas Cage
- s28e05 - 2022-05-02 - Colours, Ice Cream, Apples, Spirits
- s28e06 - 2022-05-09 - Goldfish, Flowers, Wood, Underground
- Series 29
- s29e01 - 2023-05-29 - Cleaning, Airports, New Zealand, Horses
- s29e02 - 2023-06-05 - Tea, Dancing, Beauty, Giraffes
- s29e03 - 2023-06-12 - Language, Maps, The Postal Service, Pubs
- s29e04 - 2023-06-19 - Bands, The French, Superstition, Hippopotamuses
- s29e05 - 2023-06-26 - Chefs, Pipes, Accidents, The Greeks
- s29e06 - 2023-07-03 - Insurance, Popes, Surgery, Norway
- s29eSP - 2024-01-01 - Seasonal Trimmings, a compilation of good bits from previous episodes