When did Horizon Season 7 Episode 27 air?
Horizon Season 7 Episode 27 aired on October 5, 1970.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon reports on the future of 30,000 children in Britain that are mentally retarded.
Direct answers for episode-level questions and details.
Horizon Season 7 Episode 27 aired on October 5, 1970.
This episode runs for approximately 60 minutes.
Comments coming soon
Discuss episodes with other viewers