When did Horizon Season 31 Episode 21 air?
Horizon Season 31 Episode 21 aired on December 19, 1994.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon brings you Reports from Europe, America, and Australia on how wine making differs and asks whether the traditional and troubled European wine industry will have to change its methods to compete with those wines from the new world.
Direct answers for episode-level questions and details.
Horizon Season 31 Episode 21 aired on December 19, 1994.
This episode runs for approximately 60 minutes.
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