When did Horizon Season 17 Episode 20 air?
Horizon Season 17 Episode 20 aired on November 3, 1980.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 17 · Episode 20
Smoker's Luck
Nov 3, 1980·1h
Documentary about smoking and about the secondary effects of it. Britain leads the world in smoking deaths at 200 per day. The film looks at prognosis of deat h and at the chances of those who give up smoking of dying of the effects.
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How long is Horizon Season 17 Episode 20?
This episode runs for approximately 60 minutes.
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