It's been eight whole months since the first footage from Showtime's Masters of Sex debuted, but today we have two more trailers from this upcoming drama series. Michael Sheen and Lizzy Caplan star as William Masters and Virginia Johnson, whose research on the science of sexuality sparked a nationwide sexual revolution and made them household names, appearing on the cover of Time Magazine and on The Tonight Show Starring Johnny Carson. The series premiere, directed by John Madden (The Debt, The Best Exotic Marigold Hotel), debuts Sunday, September 29 on Showtime.