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NOVA

S36 Ep12: What Are Dreams - Preview

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  • Aired: 11/24/2009
  • 00:30
  • Rating: NR
Find out what scientists know about dreams: what they are and why we have them. 8/22/2012
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S36 Ep12: What Are Dreams - Preview
S36 Ep12: What Are Dreams - Preview
Airs Wednesday, August 22, 2012 at 9:00 p.m. ET/PT. Check your local listings.
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