When did Horizon Season 15 Episode 6 air?
Horizon Season 15 Episode 6 aired on February 24, 1978.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon reports on last three attempts to build a lighthouse on the Eddystone Rocks, near Plymouth.
Direct answers for episode-level questions and details.
Horizon Season 15 Episode 6 aired on February 24, 1978.
This episode runs for approximately 60 minutes.
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