When did Horizon Season 11 Episode 25 air?
Horizon Season 11 Episode 25 aired on September 2, 1974.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon investigates some of the risks and problems involved in bringing oil from the North Sea ashore.
Direct answers for episode-level questions and details.
Horizon Season 11 Episode 25 aired on September 2, 1974.
This episode runs for approximately 60 minutes.
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