"""""""The Cohabitation Experimentation"""" -- Pictured: When Amy's apartment floods, she proposes a """"cohabitation experiment"""" with Sheldon. Also, Howard and Bernadette are upset when Koothrappali learns the gender of the baby before them, on THE BIG BANG THEORY, Monday, Oct. 10 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Photo: Michael Yarish/Warner Bros. Entertainment Inc. © 2016 WBEI. All rights reserved."""
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