(Sponsored) Sexuality would never be the same after the research of William Masters and Virginia Johnson. This bold pair of researchers are portrayed on Showtime’s new drama Masters of Sex, by Michael Sheen and Lizzie Caplan. Watch this behind-the-scenes video to learn about the very different times in which they conducted their work. Showtime’s Masters of Sex premiers on Sunday, September 29 at 10 p.m. ET/PT following Homeland. Check out sho.com for more.

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