At the Televison Critics Association (TCA) press tour, Showtime's presentation featured clips from the pilot of the upcoming series "Masters of Sex", which is about human sexuality pioneers William Masters and Virginia Johnson. The clips featured nudity from Lizzy Caplan, who plays Johnson, and others.

From The Hitfix Live Blog of the TCA:

Up first, we get clips from "Masters of Sex." We see lots of clips of modern representations of sex. The pilot, directed by John Madden, has a great look, with its period setting and Michael Sheen seems amusing. This definitely looks much livelier than "Kinsey." Lizzy Caplan also looks terrific and... yes... nudity. Beau Bridges looks interesting and funny and... no nudity. I have no clue what this show is, but it definitely seems potentially smutty and arty and intriguing. And... lots of nudity. I mean... Starz-level nudity. Using "Making Whoopie" for the promo is silly. But whatever.

http://www.hitfix.com/the-fien-print/press-tour-2012-live-blog-showtime-executive-session-with-david-nevins

From Crave Online:

"The clip shows liberal nudity and sexual situations, though mostly revealing of the woman. Nevins promised equal opportunity nudity. “Yes, only fair.”

In casting Sheen, Caplan and others, nudity was part of the deal. Some actors insisting on “no nudity” clauses could not be considered. “That ruled out some people. A show like that, the subject is human sexuality so you have to be willing, you have to be comfortable to do it.”

http://www.craveonline.com/film/articles/193141-showtime-prez-reveals-all-renewal-plans-masters-of-sex-and-ray-donovan-details

The show will premiere sometime next year.