When did Horizon Season 9 Episode 1 air?
Horizon Season 9 Episode 1 aired on January 3, 1972.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 9 · Episode 1
The Missing Link
Jan 3, 1972·1h
In this episode of Horizon, you find out how feasible it is to build a 35 mile long tunnel between Britain and France.
Episode FAQ
Direct answers for episode-level questions and details.
How long is Horizon Season 9 Episode 1?
This episode runs for approximately 60 minutes.
Comments
Comments coming soon
Discuss episodes with other viewers