When did Horizon Season 5 Episode 15 air?
Horizon Season 5 Episode 15 aired on October 24, 1968.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This episode by Horizon is about Irene Kassorlas, who's new treatment for autism has produced positive results with mute children.
Direct answers for episode-level questions and details.
Horizon Season 5 Episode 15 aired on October 24, 1968.
This episode runs for approximately 60 minutes.
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