Horizon (1964)
The BBC's landmark science documentary series, exploring the universe's greatest mysteries since 1964.
Horizon - Series Information
- Original Title: Horizon
- First Air Year: 1964
- Last Air Year: 2025
- Type: TV Series
- Genres: Documentary
- Content Rating (US): TV-PG
- Episode Runtime: Average runtime per episode (60 minutes)
- Number of Seasons: 61
- Number of Episodes: 1173
- Status: Returning Series
- Original Language: English
- Spoken Languages: English
- First Air Date: February 4, 1964 (United States - TV-PG), February 4, 1964 (Canada - PG), February 4, 1964 (Germany - 12), February 4, 1964 (India - U), February 4, 1964 (Australia - G), February 4, 1964 (Brazil - 10)
- Networks: BBC Two
- Alternative Titles: BBC Horizon (BR)
- Production Countries: United Kingdom
Horizon - Plot
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon - Trailer
Preview a glimpse of Horizon's science storytelling in action.
Where to Watch Horizon
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Horizon - Cast & Crew
Main Cast
- Michael Mosley
- Paul Vaughan
- Alice Roberts
- Hannah Fry
- Richard Feynman
- Professor Brian Cox
- Giles Yeo
- Xand van Tulleken
- David Attenborough
- Steven Mackintosh
Writers
- Kate O'Sullivan
- John Wiles
- Dan Clifton
- David Sington
- Andrew Cohen
Executive Producers
- Bruce Norman
- John Lynch
- Tom Coveney
Horizon - FAQs
How many seasons does Horizon have?
Horizon has 61 seasons spanning from 1964 to the present, plus a Specials collection of 111 additional episodes. The series has aired continuously on BBC Two for over six decades, making it one of the longest-running science documentary programmes in television history.
Where can you watch Horizon online?
Horizon is available to stream free on PBS in the United States. UK viewers can access episodes via BBC iPlayer. You can compare all available viewing options for your region using JustWatch, which lists current streaming and on-demand availability across platforms.
What is Horizon about?
Horizon is the BBC's flagship science documentary series, exploring cutting-edge discoveries, unsolved mysteries, and extraordinary natural phenomena. Each episode investigates a distinct scientific topic — from cosmology and medicine to psychology and technology — presenting complex ideas in an accessible and visually compelling format.
Is Horizon still being made in 2025?
Yes, Horizon is still in production. The series returned in 2025 with Season 61, which includes four new episodes. The programme has maintained an active production status and continues to air on BBC Two, confirming its place as an enduring fixture of British public broadcasting.
Who are the presenters featured in Horizon?
Horizon has featured a wide range of scientists and broadcasters over the decades. Notable presenters include Michael Mosley, Alice Roberts, Hannah Fry, Professor Brian Cox, Giles Yeo, Xand van Tulleken, and David Attenborough, alongside narrators such as Paul Vaughan and Steven Mackintosh.
When did Horizon first air on BBC Two?
Horizon first aired on February 4, 1964, on BBC Two. The series launched as part of the BBC's commitment to science education and public broadcasting, and it has continued to produce new episodes ever since, accumulating over 1,170 episodes across more than six decades.
What is the content rating for Horizon?
Horizon carries a TV-PG content rating in the United States, indicating that some material may not be suitable for younger children without parental guidance. The series is rated PG in Canada, G in Australia, 12 in Germany, U in India, and 10 in Brazil.
What shows are similar to Horizon?
If you enjoy Horizon, you may also like Human Universe, Cosmos: A Personal Voyage, MythBusters, Sex Explained, Bill Nye the Science Guy, and NHK Special. These series share Horizon's commitment to exploring science, nature, and human knowledge through engaging documentary storytelling.
More About Horizon
Explore further resources and official databases for Horizon.