When did Horizon Season 9 Episode 22 air?
Horizon Season 9 Episode 22 aired on July 31, 1972.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 9 · Episode 22
The Surgery of Violence
Jul 31, 1972·1h
Horizon explores the development and techniques of brain surgery from the 1950's to present-day in Britain and the USA.
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How long is Horizon Season 9 Episode 22?
This episode runs for approximately 60 minutes.
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