When did Horizon Season 7 Episode 20 air?
Horizon Season 7 Episode 20 aired on August 17, 1970.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 7 · Episode 20
The Manhunters
Aug 17, 1970·1h
Horizon reveals new evidence found by archaeologists that have now traced our origins back to the extinct ape man of Africa.
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How long is Horizon Season 7 Episode 20?
This episode runs for approximately 60 minutes.
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