When did Horizon Season 9 Episode 18 air?
Horizon Season 9 Episode 18 aired on June 12, 1972.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 9 · Episode 18
Sorry I Opened My Mouth
Jun 12, 1972·1h
Horizon reports on modern research in the prevention of tooth decay.
Episode FAQ
Direct answers for episode-level questions and details.
How long is Horizon Season 9 Episode 18?
This episode runs for approximately 60 minutes.
Comments
Comments coming soon
Discuss episodes with other viewers