When did Horizon Season 11 Episode 5 air?
Horizon Season 11 Episode 5 aired on February 4, 1974.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This episode of Horizon is about the history of the bicycle and the possibility of it being able to ease the traffic problems in Britain.
Direct answers for episode-level questions and details.
Horizon Season 11 Episode 5 aired on February 4, 1974.
This episode runs for approximately 60 minutes.
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