List of Horizon (British TV series) episodes
Introduction '''''Horizon''''' is a current and long-running BBC popular science and philosophy documentary programme. Series one was broadcast in 1964 and  it is in its 56th series. Over 1,250 episodes have been broadcast (including specials) with an average of 23 episodes per series during the 56-year run. * 1964–1969 – 135 episodes* 1970–1979 – 299 episodes* 1980–1989 – 234 episodes* 1990–1999 – 220 episodes* 2000–2009 – 191 episodes* 2010–2019 – 167 episodes* Since 2020 – 16 episodes
Series 1: 1964–1965 TitleOriginal broadcast dateEpisode
Series 2: 1965–1966 TitleOriginal broadcast dateEpisode
Series 3: 1966–1967 TitleOriginal broadcast dateEpisode
Series 4: 1967–1968 TitleOriginal broadcast dateEpisode
Series 5: 1968–1969 TitleOriginal broadcast dateEpisode
Series 6: 1969–1970 TitleOriginal broadcast dateEpisode
Series 7: 1970–1971 TitleOriginal broadcast dateEpisode
Series 8: 1971–1972 TitleOriginal broadcast dateEpisode
Series 9: 1972–1973 TitleOriginal broadcast dateEpisode
Series 10: 1973–1974 TitleOriginal broadcast dateEpisode
Series 11: 1974–1975 TitleOriginal broadcast dateEpisode
Series 12: 1975–1976 TitleOriginal broadcast dateEpisode
Series 13: 1976–1977 TitleOriginal broadcast dateEpisode
Series 14: 1977–1978 TitleOriginal broadcast dateEpisode
Series 15: 1978–1979 TitleOriginal broadcast dateEpisode
Series 16: 1979–1980 TitleOriginal broadcast dateEpisode
Series 17: 1980–1981 TitleOriginal broadcast dateEpisode
Series 18: 1981–1982 TitleOriginal broadcast dateEpisode
Series 19: 1982–1983 TitleOriginal broadcast dateEpisode
Series 20: 1983–1984 TitleOriginal broadcast dateEpisode
Series 21: 1984–1985 TitleOriginal broadcast dateEpisode
Series 22: 1985–1986 TitleOriginal broadcast dateEpisode
Series 23: 1987 TitleOriginal broadcast dateEpisode
Series 24: 1988 TitleOriginal broadcast dateEpisode
Series 25: 1988–1989 TitleOriginal broadcast dateEpisode
Series 26: 1990 TitleOriginal broadcast dateEpisode
Series 27: 1990–1991 TitleOriginal broadcast dateEpisode
Series 28: 1992 TitleOriginal broadcast dateEpisode
Series 29: 1992–1993 TitleOriginal broadcast dateEpisode
Series 30: 1993–1994 TitleOriginal broadcast dateEpisode
Series 31: 1994–1995 TitleOriginal broadcast dateEpisode
Series 32: 1995–1996 TitleOriginal broadcast dateEpisode
Series 33: 1996–1997 TitleOriginal broadcast dateEpisode
Series 34: 1997–1998 TitleOriginal broadcast dateEpisode
Series 35: 1998–1999 TitleOriginal broadcast dateEpisode
Series 36: 1999–2000 TitleOriginal broadcast dateEpisode
Series 37: 2000–2001 TitleOriginal broadcast dateEpisode
Series 38: 2001–2002 TitleOriginal broadcast dateEpisode
Series 39: 2002–2003 Horizon Revisited was broadcast on BBC Four and shown between 2002 and 2003.Each of the seven episodes takes information and clips from previous edition of ''Horizon'' and updates them with current thinking on each of the topics at hand. These are similar in format to the current 'Horizon Guide' special episodes.TitleOriginal broadcast dateEpisode
Series 40: 2003–2004 TitleOriginal broadcast dateEpisode
Series 41: 2004–2005 TitleOriginal broadcast dateEpisode
Series 42: 2005–2006 TitleOriginal broadcast dateEpisode
Series 43: 2006–2007 TitleOriginal broadcast dateEpisode
Series 44: 2007–2008 TitleOriginal broadcast dateEpisode
Series 45: 2008–2009 TitleOriginal broadcast dateEpisode
Series 46: 2009–2010 TitleOriginal broadcast dateEpisode
Series 47: 2010–2011 TitleOriginal broadcast dateEpisode
Series 48: 2011–2012 TitleOriginal broadcast dateEpisode
Series 49: 2012–2013 TitleOriginal broadcast dateEpisode
Series 50: 2013–2014 TitleOriginal broadcast dateEpisode
Series 51: 2014–2015 TitleOriginal broadcast dateEpisode
Series 52: 2016 TitleOriginal broadcast dateEpisode
Series 53: 2017 TitleOriginal broadcast dateEpisode
Series 54: 2018 TitleOriginal broadcast dateEpisode
Series 55: 2019 TitleOriginal broadcast dateEpisode
Series 56: 2020 TitleOriginal broadcast dateEpisode
Series 57: 2021 TitleOriginal broadcast dateEpisode
Series 58: 2022 TitleOriginal broadcast dateEpisode
References ;General*" Horizon archives". BBC Retrieved on 2009-12-08*" Horizon episodes coming up". BBC Retrieved on 2009-12-08*" Recent Horizons". BBC Retrieved on 2009-12-08*" Episode Guide". BBC Retrieved 2013-02-01* Search for "Horizon" in programme titles from 1964 via BBC Programme Index (search results include some false positives);Specific