Episode 1
We Need to Talk about Death
1h7.0 / 10
Dr Kevin Fong makes a personal journey through the moral questions about death that face not just the medical profession, but each and every one of us.
Where to watch Horizon
TV series
Horizon
1964TV-PG62 seasons7.4 / 10
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Availability
Not streaming in United States
Checked Jul 22, 2026
Horizon premiered February 4, 1964. We don't have a confirmed streaming, rental or purchase option yet.
Synopsis
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 56 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Britain's Next Air Disaster? Drones
1h
In the wake of the Gatwick drone crisis, high-risk specialist Aldo Kane investigates the threat drones pose to UK skies and tests the new technology we can use to keep ourselves safe.
Where to watch Horizon
Episode 3
The Honest Supermarket: What’s Really in Our Food?
1h7.0 / 10
We spend 190 billion pounds a year on groceries, but can we trust our supermarkets to tell us the truth about what we’re buying? Dr Hannah Fry and Priya Tew investigate the food we eat.
Where to watch Horizon
Episode 4
Inside the Social Network: Facebook's Difficult Year
1h8.0 / 10
Following the teams inside Facebook, revealing a hidden technological playground. The film tackles difficult questions, like how our data is used, and also shows how Facebook works.
Where to watch Horizon
Episode 5
The 250 Million Pound Cancer Cure
1h
Following the NHS as they start to implement proton beam therapy, an advanced but expensive cancer treatment, as well as following as the first children awaiting the lifesaving treatment.
Where to watch Horizon
Episode 6
Cannabis: Miracle Medicine or Dangerous Drug?
1h8.0 / 10finale
At a pivotal moment in the history of one of the world’s oldest drugs, Dr Javid Abdelmoneim investigates the latest medical and scientific research into the effects of cannabis on the brain and body.
Where to watch HorizonEpisode information updated Jul 24, 2026
Available now in United States
What to watch instead
These shows are available now and closely match Horizon.
No close matches are available right now.
Browse new showsMore about Horizon
Cast
Richard Branson
Nicholas SoamesBob Brier
Robert Winston
Robert GalloTrevor R. Bryce
Joshua Wurman
Bill PatersonProduction details
- Status
- Returning Series
- Series type
- Documentary
- Episodes
- 1,173
- Original language
- English
Networks & production
BBC TwoUnited Kingdom
Themes
philosophyscience