1

Horizon Christmas Special: Hand me my Sword, Humphrey

1966-12-25

2

The Case of the Ancient Astronauts

1977-11-25

3

The Mind's Eye

1980-01-28

4

25 Years in Space

1982-12-25

5

Biology at War: The Mystery of Yellow Rain

1984-05-15

6

Beyond the Moon

1984-07-21

7

Biology at War: A Plague in the Wind

1984-10-29

8

Twenty-First Birthday

1985-05-20

9

Halley's Comet - The Apparition

1985-11-25

10

Halley's Comet - The Encounter

1986-03-13

11

The Diary of Discovery

1988-09-28

12

Making an Honest Fiver

1990-06-06

13

Red Star in Orbit: The Invisible Spaceman

1990-12-07

14

Red Star in Orbit: The Dark Side of the Moon

1990-12-14

15

Red Star in Orbit: The Mission

1990-12-21

16

A Close Encouter of the Second Kind

1992-07-10

17

Hide and Seek in Iraq

1992-08-23

18

The Truth About Sex

1992-10-12

19

Assault on the Male

1993-10-31

20

30th Anniversary - The Far Side

1994-05-23

21

Twice Born

1995-02-14

22

Einstein: The Miracle Year

1996-03-17

23

Einstein: Fame

1996-03-18

24

BSE: The Invisible Enemy

1996-11-17

25

BSE: The Human Experiment

1996-11-18

26

Molecules With Sunglasses (Update)

1996-12-09

27

Ice Mummies: The Ice Maiden

1997-01-30

28

Ice Mummies: A Life in Ice

1997-02-06

29

Ice Mummies: Frozen in Heaven

1997-02-13

30

Computers Don't Bite, Inside the Internet

1997-05-17

31

Antarctica: The Ice Lives

1997-10-30

32

Antarctica: The Ice Forms

1997-11-06

33

Antarctica: The Ice Melts

1997-11-13

34

Crash

1998-01-08

35

Darwin: The Legacy

1998-03-29

36

Longitude

1999-01-04

37

Fat Files: Born to Be Fat

1999-01-07

38

Fat Files: Fixing Fat

1999-01-14

39

Fat Files: Living on Air

1999-01-21

40

Atlantis Uncovered

1999-10-28

41

Atlantis Reborn

1999-11-04

42

Life and Death in the 21st Century: Living Forever

2000-01-04

43

Life and Death in the 21st Century: Future Plagues

2000-01-05

44

Life and Death in the 21st Century: Designer Babies

2000-01-06

45

Inside the Internet

2000-06-10

46

Life on Mars

2001-01-11

47

Destination Mars

2001-01-18

48

What Sank the Kursk?

2001-08-08

49

First Olympians: A Horizon Special

2004-07-23

50

Everest: Doctors in the Death Zone (1)

2007-09-23

51

Everest: Doctors in the Death Zone (2)

2007-09-30

52

Lost Horizons: The Big Bang

2008-09-04

53

How Mad Are You? (1)

2008-11-11

54

How Mad Are You? (2)

2008-11-18

55

40 Years on the Moon

2009-07-09

56

Pandemic: A Horizon Guide

2009-08-09

57

Mars: A Horizon Guide

2009-11-15

58

How Many People Can Live on Planet Earth?

2009-12-09

59

Diet: A Horizon Guide

2010-01-07

60

The End of God? A Horizon Guide to Science and Religion

2010-09-17

61

What Makes Us Clever? A Horizon Guide to Intelligence

2011-01-06

62

Japan Earthquake: A Horizon Special

2011-03-27

63

The Space Shuttle: A Horizon Guide

2011-04-10

64

The End of the World? A Horizon Guide to Armageddon

2011-05-12

65

Carrot or Stick? A Horizon Guide to Raising Kids

2011-08-11

66

Extinct: A Horizon Guide to Dinosaurs

2011-09-21

67

The Hunt for Higgs: A Horizon Special

2012-01-09

68

Woof! A Horizon Guide to Dogs

2012-03-01

69

The Hunt for AI

2012-04-03

70

Stuff: A Horizon Guide to Materials

2012-04-19

71

Blink: A Horizon Guide to the Senses

2012-07-11

72

Immortal? A Horizon Guide to Ageing

2012-07-17

73

Mission to Mars: A Horizon Special

2012-07-31

74

The Final Frontier: A Horizon Guide to the Universe

2012-10-17

75

The Truth About Meteors: A Horizon Special

2013-03-03

76

Mend Me: A Horizon Guide to Transplants

2013-03-27

77

Tomorrow's World: A Horizon Special

2013-04-11

78

What's Killing Our Bees? A Horizon Special

2013-08-02

79

Comet of the Century: A Horizon Special

2013-11-23

80

The £10 Million Challenge

2014-05-22

81

The Transit of Venus: A Horizon Special

2012-06-05

100

The Great British Drought

1976-05-26

101

Festival 77: Horizon 2002

1977-08-26

102

Darwin's Dream

1977-09-23

103

A Killer in the Village - Update

1984-04-02

104

Life Story

1987-04-27

105

Sex: A Horizon Guide

2013-09-11

106

Climate Change: A Horizon Guide

2015-03-04

107

The Mystery of Murder: A Horizon Guide

2015-03-09

108

The Horizon Guide to AI

2018-09-04

109

Tim Peake Special - How to be an Astronaut

2015-12-13

110

Jimmy Carr and the Science of Laughter

2016-09-11

111

Horizon Special: The Vaccine

2021-06-16

112

The Life and Times of El Niño

2006-01-03

113

Impact! A Horizon Guide to Plane Crashes

2013-10-14

114

Impact! A Horizon Guide to Car Crashes

2013-10-21

115

Cat Watch 2014 - A Cat's Eye View

2014-10-07

116

Cat Watch 2014 - The Lion in Your Lap

2014-10-08

117

Cat Watch 2014 - Cat Talk

2014-10-09

118

What's The Right Diet For You? Part 1

2015-01-12

119

What's The Right Diet For You? Part 2

2015-01-13

120

What's The Right Diet For You? Part 3

2015-01-14

121

Journey to the Moon: A Horizon Special

2019-07-17

122

Alastair Campbell: Depression and Me

2019-05-21

123

Ice Station Antarctica: Part One

2016-05-21

124

Ice Station Antarctica: Part Two

2016-05-28

125

Coronavirus Special - Part 1

2020-04-09

126

Coronavirus Special - Part 2

2020-05-19

127

Coronavirus Special - What We Know Now

2021-02-25

128

Horizon Special: The Vaccine

2021-06-16

999

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