When did NOVA Season 8 Episode 20 air?
NOVA Season 8 Episode 20 aired on December 6, 1981 at 9 PM ET.


PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.
Ever thought what it's like having your mirror image talk back to you? It can be an everyday occurrence for identical Twins. NOVA tells the incredible story of scientific research on twins—a field marked by brazen and damaging fraud, but also by surprising and important new discoveries about nature's recipe of heredity and environment which makes us all unique individuals.
Direct answers for episode-level questions and details.
NOVA Season 8 Episode 20 aired on December 6, 1981 at 9 PM ET.
This episode runs for approximately 55 minutes.
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