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 – 19 episodes
Series 1: 1964–1965 TitleOriginal broadcast dateEpisode
Series 2: 1965–1966 TitleOriginal broadcast dateEpisode
Series 3: 1966–1967 TitleOriginal broadcast dateEpisode
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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
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Series 51: 2014–2015 TitleOriginal broadcast dateEpisode
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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 2024–2026 Since 2022 a number of standalone documentaries have been broadcast with Horizon branding at the beginning, although the BBC catalogues them as standalone and does not include them in its own Horizon episode list.
TitleOriginal broadcast dateEpisode
References
General "Horizon archives". BBC Retrieved on 2009-12-08 "BBC Two - Horizon - Episode guide". Retrieved 2025-07-27 "BBC Two - Horizon - Available now". Retrieved 2025-07-27 "BBC Two - Horizon - Next on". Retrieved on 2025-07-27 "Recent Horizons". BBC Retrieved on 2009-12-08 Search for "Horizon" in programme titles from 1964 via BBC Programme Index (search results include some false positives)
Specific