When did Horizon Season 2 Episode 20 air?
Horizon Season 2 Episode 20 aired on October 24, 1965.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 2 · Episode 20
An Affair of the Heart
Oct 24, 1965·1h
Horizon explores heart attacks and thrombosis.
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Direct answers for episode-level questions and details.
How long is Horizon Season 2 Episode 20?
This episode runs for approximately 60 minutes.
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