Ellen Gray's weekend TV picks: 'Masters of Sex,' 'The Strain,' 'Ray Donovan' and more

* MASTERS OF SEX. 10 p.m. Sunday, Showtime.

Season 3 leaps forward to 1966 with William Masters (Michael Sheen) and Virginia Johnson (Lizzy Caplan, below left, with Caitlin Fitzgerald) at last taking their sex research public. Their (somewhat fictionalized) private lives? They're as complicated as ever.

* RAY DONOVAN. 9 p.m. Sunday, Showtime.

Ian McShane and Katie Holmes play a father and daughter who find uses for Ray (Liev Schreiber) and his special skills in Season 3.

* THE STRAIN. 10 p.m. Sunday, FX.

Guillermo del Toro's series is too richly gory for my blood, but I appreciate its willingness to make vampires nasty. Season 2 begins with an intriguing flashback and epidemiologist Ephraim Goodweather resumes drinking. As one does.

* 7 DAYS IN HELL. 10 p.m.

Saturday, HBO.

Andy Samberg ("Saturday Night Live," "Brooklyn Nine-Nine") and Kit Harington ("Game of Thrones") star in a Wimbledon-themed special that plays like the longest "SNL" digital short ever. And that's part of the joke, since the Jon Hamm-narrated mockumentary is about a tennis match that just won't end.

* PLAYIN' FOR LOVE. 7 p.m.

Sunday, Up.

Actor/comedian Robert Townsend stars in a romantic comedy he also directed and co-wrote. He plays a Miami high school basketball coach whose newest player comes with a formidable mother ( Salli Richardson-Whitfield, "Being Mary Jane").