When did Horizon Season 18 Episode 1 air?
Horizon Season 18 Episode 1 aired on January 5, 1981.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon presents a portrait of the renowned economist John Maynard Keynes, Cambridge Don, and Bloomsbury intellectual.
Direct answers for episode-level questions and details.
Horizon Season 18 Episode 1 aired on January 5, 1981.
This episode runs for approximately 60 minutes.
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