

Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Seasons

1964
9 episodes
Episodes

1965
24 episodes

1966
23 episodes

1967
23 episodes

1968
24 episodes

1969
37 episodes

1970
37 episodes

1971
32 episodes

1972
33 episodes

1973
32 episodes

1974
33 episodes

1975
26 episodes

1976
30 episodes

1977
23 episodes

1978
24 episodes

1979
25 episodes

1980
25 episodes

1981
27 episodes

1982
22 episodes

1983
24 episodes

1984
22 episodes

1985
16 episodes

1986
22 episodes

1987
22 episodes

1988
25 episodes

1989
20 episodes

1990
20 episodes

1991
23 episodes

1992
19 episodes

1993
21 episodes

1994
21 episodes

1995
20 episodes

1996
16 episodes

1997
15 episodes

1998
18 episodes

1999
14 episodes

2000
19 episodes

2001
11 episodes

2002
18 episodes

2003
19 episodes

2004
18 episodes

2005
20 episodes

2006
19 episodes

2007
9 episodes

2008
17 episodes

2009
18 episodes

2009-2010
14 episodes

2010-2011
15 episodes

2011-2012
13 episodes

2012-2013
16 episodes

2013-2014
11 episodes

2014-2015
18 episodes

2016
16 episodes

2017
15 episodes

2018
13 episodes

2019
6 episodes

2020
8 episodes

2021
4 episodes

2022
4 episodes

2024
1 episodes

2025
1 episodes