Season 1
Episode: 1x01 | Airdate: Feb 19, 2010
Topics include Karl's Encino Man-like view on modern technology, his take on population control, the first monkey in space, and paranormal activity (or "weird stuff", as Karl puts it), including a cursed tankard, flies and a condom, and a spooky shopping list.
Episode: 1x02 | Airdate: Feb 26, 2010
Topics include a lion-mutilation story in Cambodia; what to know about donating to charities; public nudity; violence in animal sanctuaries; sexual aids for men and women.
Episode: 1x03 | Airdate: Mar 5, 2010
Topics include Karl's theory on a reverse-aging process; charitable gifts for families in need; the merits of space travel; a choice of superpowers; personal mottos. Also: a "Monkey News" segment about a Moscow TV station.
Episode: 1x04 | Airdate: Mar 12, 2010
Karl admits that he is getting a face rub at a spa; The customs of undocumented tribes in New Guinea; Ricky and Karl's trip to an antiquities store; A fan's email warns of dangerous dolphins.
Episode: 1x05 | Airdate: Mar 19, 2010
Karl answers questions from fans; Karl deciphers the true meaning of sayings; Karl's New Year's resolution; "Monkey News."
Episode: 1x06 | Airdate: Mar 26, 2010
A fan asks Karl which body part he could live without; fan mail questions for Karl; "Monkey News."
Episode: 1x07 | Airdate: Apr 9, 2010
Ricky and Stephen read passages from Karl's diary; nicknames; "Monkey News."
Episode: 1x08 | Airdate: Apr 16, 2010
Karl answers fan emails, Stephen reads more from Karl's diary; Karl discusses how he would redesign animals; "Monkey News."
Episode: 1x09 | Airdate: Apr 23, 2010
Questions for Karl; Karl's diary; Monkey News.
Episode: 1x10 | Airdate: Apr 30, 2010
Karl discusses his teaching methods; questions for Karl; Karl's diary; Monkey News.
Episode: 1x11 | Airdate: May 7, 2010
Karl gives advice for Valentine's Day. Karl imagines what it would be like to be a beetle; Karl's diary; final Monkey News.
Episode: 1x12 | Airdate: May 14, 2010
Inside the Actors Studio questionnaire; Karl discusses the afterlife; Karl's diary.
Episode: 1x13 | Airdate: May 21, 2010
Inside the Actors Studio questionnaire; Karl's diary; Karl's top 5 freaks.
Season 2
Episode: 2x01 | Airdate: Jan 14, 2011
Karl tells Ricky and Stephen about his pitch of a movie starring "Clive Warren" and Rebecca De Mornay. Stephen reads more pages from Karl's diary, revealing Karl's dislike of camping in Australia and his habit of saving insects from falling into a swimming pool.
Episode: 2x02 | Airdate: Jan 21, 2011
Karl discusses what his doppelganger would be like. Ricky gives Karl a riddle. Karl and Stephen say what they do not like about Ricky's cat. Stephen discusses his holiday in Rio, where he went for Carnival.
Episode: 2x03 | Airdate: Jan 28, 2011
The trio discuss animals and diseases; evolution; a fly that is supposedly a pet; Karl's diary.
Episode: 2x04 | Airdate: Feb 4, 2011
Ricky gives Karl some animal facts. Karl ponders the question of whether you control your brain, or your brain controls you. From Karl's diary we investigate the curious case of the invisible Chinese man, why blind people have affairs, the feasibility and usefulness of putting a mirror on the Moon, and birthdays.
Episode: 2x05 | Airdate: Feb 11, 2011
Karl shares his thoughts on why insects are so deserving of his attention. Karl talks about his disappointment when learning about a killer octopus; what he would change in crabs; more stuff about insects. Karl's diary is also mostly about insects.
Episode: 2x06 | Airdate: Feb 18, 2011
Karl talks about having been rushed to hospital. He says that kidney stones were found and he had a catheter put into his penis. Karl ponders a phenomenon; Karl's diary; and more.
Episode: 2x07 | Airdate: Mar 4, 2011
Karl ponders height extremes when he learns that one of his new fans is actor Warwick Davis. Stephen entertains us with a story of his wild night out clubbing with his friends in London.
Episode: 2x08 | Airdate: Mar 11, 2011
Karl's academic predictions for the future include; everyone will be ugly and physically weaker, trousers will cease to be produced and we will blend all of our food.
Episode: 2x09 | Airdate: Mar 18, 2011
Topics include the value of discovering new species; a perturbing feature for a future car; and a documentary about a pregnant man.
Episode: 2x10 | Airdate: Mar 25, 2011
Karl discusses his childhood memories of having thousands of Tic Tacs in his house, plus his curiosity at the reading material in a doctor's surgery.
Episode: 2x11 | Airdate: Apr 1, 2011
Karl recounts having eaten a beetle, having been lost in London and having talked to a ghost in Cornwall, plus his theory on how Martians are more productive than humans - a must watch!
Episode: 2x12 | Airdate: Apr 8, 2011
The trio discuss major modern artworks, Karl talks about a tricycle-riding woman from his estate. Karl and Ricky go head to head on the act of whistling.
Episode: 2x13 | Airdate: Apr 15, 2011
For the season finale, the trio discuss virtual reality, holidays and happiness. Plus an extraordinarily rare event takes place...
Season 3
Episode: 3x01 | Airdate: Apr 20, 2012
Ricky, Stephen and Karl discuss Karl's theory on how museums procure items. Also, Karl pitches his new idea for a film about a man whose brain is transplanted into Tom Cruise's body.
Episode: 3x02 | Airdate: Apr 27, 2012
After Stephen recalls being the only kid in his school to dress in a costume for Comic Relief Day, Karl shares his idea that there should be one, and only one, charitable cause per year.
Episode: 3x03 | Airdate: May 4, 2012
Karl explains why he would have liked to join the Army and recounts his most harrowing acts of bravery.
Episode: 3x04 | Airdate: May 11, 2012
Ricky suggests they play "Room 102", a take on George Orwell's Room 101 from "1984", and asks Karl what he would banish to Room 102 forever.
Episode: 3x05 | Airdate: May 18, 2012
After Karl insists that he is really a happy-go-lucky guy at heart, spending most of his time home alone on DIY projects, Ricky and Stephen ask him to take them through a typical day.
Episode: 3x06 | Airdate: May 25, 2012
Ricky, Stephen and Karl take turns describing the quintessential Englishman, and Karl explains why, if he could be any nationality other than English, he'd choose to be Italian.
Episode: 3x07 | Airdate: Jun 1, 2012
Ricky, Stephen and Karl discuss capital punishment, the Ten Commandments and hostage negotiation.
Episode: 3x08 | Airdate: Jun 8, 2012
Karl shares his thoughts on medical advancements, how being sick makes him feel better, and his idea for a machine that would allow doctors to feel their patients' pain.
Episode: 3x09 | Airdate: Jun 15, 2012
Karl contemplates the beginnings of the Universe, evolution, recycling, and toilets abroad.
Episode: 3x10 | Airdate: Jun 22, 2012
Ricky, Stephen, and Karl discuss the laws of society and civil rights.
Episode: 3x11 | Airdate: Jun 29, 2012
Karl interprets the meaning of wartime sayings and imagines a scenario in which he is the wife of a GI.
Episode: 3x12 | Airdate: Jul 6, 2012
Ricky, Stephen, and Karl ponder the problem of overzealous sports fans; Karl shares his salivavolume test.
Episode: 3x13 | Airdate: Jul 13, 2012
When asked about his highlight of the past year, Karl describes an insect that ate a crumb from his biscuit. Stephen recounts the embarrassment of buying condoms and reads from Karl's Diary.