When did Horizon Season 24 Episode 23 air?
Horizon Season 24 Episode 23 aired on June 29, 1987.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Janice Blenkharn's mother died of Huntington's Chorea, which any child of a victim has a 50-50 chance of inheriting. Janice is faced with the choice of having a test, developed after research in South America, to see if she has this incurable genetic disease.
Direct answers for episode-level questions and details.
Horizon Season 24 Episode 23 aired on June 29, 1987.
This episode runs for approximately 60 minutes.
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