When did Horizon Season 9 Episode 15 air?
Horizon Season 9 Episode 15 aired on May 1, 1972.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 9 · Episode 15
The Wizard Who Spat on the Floor
May 1, 1972·1h
Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.
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Direct answers for episode-level questions and details.
How long is Horizon Season 9 Episode 15?
This episode runs for approximately 60 minutes.
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