When did Horizon Season 11 Episode 31 air?
Horizon Season 11 Episode 31 aired on December 16, 1974.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 11 · Episode 31
The Neglected Harvest
Dec 16, 1974·1h
Horizon investigates the developments and research in forestry which may now help to overcome shortage of timber.
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Direct answers for episode-level questions and details.
How long is Horizon Season 11 Episode 31?
This episode runs for approximately 60 minutes.
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