When did Horizon Season 19 Episode 20 air?
Horizon Season 19 Episode 20 aired on December 6, 1982.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 19 · Episode 20
The Chopper
Dec 6, 1982·1h
Traces the evolution of the helicopter, using rare archive footage of early pioneering flights. Also examines the latest research within the industry, and, with the aid of graphics, produces a glimpse of the helicopter of the future
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How long is Horizon Season 19 Episode 20?
This episode runs for approximately 60 minutes.
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