When did Horizon Season 4 Episode 22 air?
Horizon Season 4 Episode 22 aired on December 5, 1967.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Arthur Koestler talks about the psychological theories of creativity and the role of the mind in science and art.
Direct answers for episode-level questions and details.
Horizon Season 4 Episode 22 aired on December 5, 1967.
This episode runs for approximately 60 minutes.
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