List of Horizon (British TV series) episodes explained

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

Title	Original broadcast date	Episode

Series 2: 1965–1966

Title	Original broadcast date	Episode

Series 3: 1966–1967

Title	Original broadcast date	Episode

Series 4: 1967–1968

Title	Original broadcast date	Episode

Series 5: 1968–1969

Title	Original broadcast date	Episode

Series 6: 1969–1970

Title	Original broadcast date	Episode

Series 7: 1970–1971

Title	Original broadcast date	Episode

Series 8: 1971–1972

Title	Original broadcast date	Episode

Series 9: 1972–1973

Title	Original broadcast date	Episode

Series 10: 1973–1974

Title	Original broadcast date	Episode

Series 11: 1974–1975

Title	Original broadcast date	Episode

Series 12: 1975–1976

Title	Original broadcast date	Episode

Series 13: 1976–1977

Title	Original broadcast date	Episode

Series 14: 1977–1978

Title	Original broadcast date	Episode

Series 15: 1978–1979

Title	Original broadcast date	Episode

Series 16: 1979–1980

Title	Original broadcast date	Episode

Series 17: 1980–1981

Title	Original broadcast date	Episode

Series 18: 1981–1982

Title	Original broadcast date	Episode

Series 19: 1982–1983

Title	Original broadcast date	Episode

Series 20: 1983–1984

Title	Original broadcast date	Episode

Series 21: 1984–1985

Title	Original broadcast date	Episode

Series 22: 1985–1986

Title	Original broadcast date	Episode

Series 23: 1987

Title	Original broadcast date	Episode

Series 24: 1988

Title	Original broadcast date	Episode

Series 25: 1988–1989

Title	Original broadcast date	Episode

Series 26: 1990

Title	Original broadcast date	Episode

Series 27: 1990–1991

Title	Original broadcast date	Episode

Series 28: 1992

Title	Original broadcast date	Episode

Series 29: 1992–1993

Title	Original broadcast date	Episode

Series 30: 1993–1994

Title	Original broadcast date	Episode

Series 31: 1994–1995

Title	Original broadcast date	Episode

Series 32: 1995–1996

Title	Original broadcast date	Episode

Series 33: 1996–1997

Title	Original broadcast date	Episode

Series 34: 1997–1998

Title	Original broadcast date	Episode

Series 35: 1998–1999

Title	Original broadcast date	Episode

Series 36: 1999–2000

Title	Original broadcast date	Episode

Series 37: 2000–2001

Title	Original broadcast date	Episode

Series 38: 2001–2002

Title	Original broadcast date	Episode

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.

Title	Original broadcast date	Episode

Series 40: 2003–2004

Title	Original broadcast date	Episode

Series 41: 2004–2005

Title	Original broadcast date	Episode

Series 42: 2005–2006

Title	Original broadcast date	Episode

Series 43: 2006–2007

Title	Original broadcast date	Episode

Series 44: 2007–2008

Title	Original broadcast date	Episode

Series 45: 2008–2009

Title	Original broadcast date	Episode

Series 46: 2009–2010

Title	Original broadcast date	Episode

Series 47: 2010–2011

Title	Original broadcast date	Episode

Series 48: 2011–2012

Title	Original broadcast date	Episode

Series 49: 2012–2013

Title	Original broadcast date	Episode <	-- ^[1] -->

Series 50: 2013–2014

Title	Original broadcast date	Episode

Series 51: 2014–2015

Title	Original broadcast date	Episode <	-- There was no Episode 5, for some reason. Note: There was, actually, you just needed to check your episode numbering with BBC first to realise you had them numbered incorrectly from another website other than BBC who actually produce the show. Note: Note: I got the numbers from the BBC's site. Come to the Talk page if you want to discuss further. -->

Series 52: 2016

Title	Original broadcast date	Episode

Series 53: 2017

Title	Original broadcast date	Episode

Series 54: 2018

Title	Original broadcast date	Episode

Series 55: 2019

Title	Original broadcast date	Episode

Series 56: 2020

Title	Original broadcast date	Episode

Series 57: 2021

Title	Original broadcast date	Episode

Series 58: 2022

Title	Original broadcast date	Episode

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

1. Web site: BBC Two - Horizon - Episode guide. BBC.