When did Horizon Season 10 Episode 4 air?
Horizon Season 10 Episode 4 aired on January 25, 1973.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 10 · Episode 4
The Curtain of Silence
Jan 25, 1973·1h
Horizon looks into the problem of deafness in Britain.
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How long is Horizon Season 10 Episode 4?
This episode runs for approximately 60 minutes.
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