Season
- Season 59 2022-03-31
- Season 58 2021-01-04
- Season 57 2020-01-16
- Season 56 2019-01-23
- Season 55 2018-02-05
- Season 54 2017-01-19
- Season 53 2016-03-16
- Season 52 2014-08-17
- Season 51 2013-08-12
- Season 50 2012-07-23
- Season 49 2011-08-08
- Season 48 2010-09-26
- Season 47 2009-10-13
- Season 46 2009-01-26
- Season 45 2008-01-15
- Season 44 2007-03-13
- Season 43 2006-01-12
- Season 42 2005-01-13
- Season 41 2004-01-08
- Season 40 2003-01-09
- Season 39 2002-01-10
- Season 38 2001-01-25
- Season 37 2000-01-12
- Season 36 1999-01-28
- Season 35 1998-02-19
- Season 34 1997-02-27
- Season 33 1996-01-08
- Season 32 1995-01-09
- Season 31 1994-01-10
- Season 30 1993-01-04
- Season 29 1992-01-06
- Season 28 1991-01-07
- Season 27 1990-01-08
- Season 26 1989-01-09
- Season 25 1988-01-04
- Season 24 1987-01-05
- Season 23 1986-01-06
- Season 22 1985-01-07
- Season 21 1984-01-09
- Season 20 1983-01-10
- Season 19 1982-01-11
- Season 18 1981-01-05
- Season 17 1980-01-14
- Season 16 1979-02-26
- Season 15 1978-01-06
- Season 14 1977-01-07
- Season 13 1976-01-05
- Season 12 1975-01-20
- Season 11 1974-01-07
- Season 10 1973-01-04
- Season 9 1972-01-03
- Season 8 1971-01-04
- Season 7 1970-01-05
- Season 6 1969-01-02
- Season 5 1968-01-02
- Season 4 1967-01-17
- Season 3 1966-01-02
- Season 2 1965-01-06
- Season 1 1964-02-03
- Season 0 1966-12-25
Episode
- Episode 1: Just Another World
- Episode 2: Henry Royce, Mechanic
- Episode 3: A Disease of Our Time - Stress
- Episode 4: A Disease of Our Time - Heart Attacks
- Episode 5: Sex and Sexuality
- Episode 6: Whose Coast?
- Episode 7: A Much Wanted Child
- Episode 8: The Expert Witness
- Episode 9: After the Iron Age
- Episode 10: Let the Therapy Fit the Crime
- Episode 11: The World Outside
- Episode 12: In the Beginning was the Word
- Episode 13: The Drifting of the Continents
- Episode 14: A Case of Priority
- Episode 15: The Fretful Elements
- Episode 16: One Man's Meat
- Episode 17: Only Skin Deep
- Episode 18: Wolves and Wolfmen
- Episode 19: A Measure of Uncertainty
- Episode 20: The Manhunters
- Episode 21: Don't Get Sick in America
- Episode 22: Crown of Thorns
- Episode 23: Noah's Ark in Kensington
- Episode 24: Virus
- Episode 25: Water, Water
- Episode 26: All Creatures Great and Small
- Episode 27: A Child for a Lifetime
- Episode 28: Something for Our Children
- Episode 29: Million Ton Tanker
- Episode 30: The Insect War
- Episode 31: The Savage Mind
- Episode 32: Tanks
- Episode 33: Mind the Machine
- Episode 34: Square Pegs
- Episode 35: Earthquakes, The City that Waits to Die
- Episode 36: The Man who Talks to Frogs
- Episode 37: The Gargantuan Triumph of Science
Horizon 1970
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