Horizon (1964)
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Specials
111 episodes
1964
9 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