Horizon
Overview
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Networks
BBC TwoSeasons
S1
1964
9 eps
S2
1965
24 eps
S3
1966
23 eps
S4
1967
23 eps
S5
1968
24 eps
S6
1969
37 eps
S7
1970
37 eps
S8
1971
32 eps
S9
1972
33 eps
S10
1973
32 eps
S11
1974
33 eps
S12
1975
26 eps
S13
1976
30 eps
S14
1977
23 eps
1978
24 eps
S16
1979
25 eps
S17
1980
25 eps
S18
1981
27 eps
S19
1982
22 eps
S20
1983
24 eps
S21
1984
22 eps
S22
1985
16 eps
S23
1986
22 eps
S24
1987
22 eps
S25
1988
25 eps
S26
1989
20 eps
S27
1990
20 eps
S28
1991
23 eps
S29
1992
19 eps
S30
1993
21 eps
S31
1994
21 eps
S32
1995
20 eps
S33
1996
16 eps
S34
1997
15 eps
S35
1998
18 eps
S36
1999
14 eps
2000
19 eps
S38
2001
11 eps
2002
18 eps
S40
2003
19 eps
2004
18 eps
S42
2005
20 eps
2006
19 eps
2007
9 eps
2008
17 eps
2009
18 eps
2009-2010
14 eps
2010-2011
15 eps
2011-2012
13 eps
2012-2013
16 eps
2013-2014
11 eps
2014-2015
18 eps
2016
16 eps
2017
15 eps
2018
13 eps
S56
2019
6 eps
2020
8 eps
2021
4 eps
2022
4 eps
S60
2024
1 ep
S61
2025
4 eps
