Ellen Gray's weekend TV picks
* FRANKENFOOD. 10:30 p.m. Saturday, Spike TV.
Sandwich mogul Tony Luke Jr.'s new food-challenge show comes to Philly in this weekend's episode, which takes place at Molly Malloy's in Reading Terminal Market (where the winning combo will be added to the menu).
* THE STRAIN. 10 p.m. Sunday, FX.
If you like your vampire shows more realistic than romantic, then this intermittently gross new series from Guillermo del Toro ("Pacific Rim") and Chuck Hogan, based on their book trilogy, might make your Sundays. Corey Stoll (left, above) stars as a workaholic CDC investigator who suspects that a plane full of dead people might be more of a problem than the rest of the feds realize. Not for the squeamish.
* MASTERS OF SEX. 10 p.m. Sunday, Showtime.
The Season 2 opener finds sex research pioneers Masters and Johnson (Michael Sheen and Lizzy Caplan) at a low point in their careers, with their work temporarily derailed and their relationship badly in need of some tinkering.
* RAY DONOVAN. 9 p.m. Sunday, Showtime.
Hollywood fixer Ray Donovan (Liev Schreiber) is back and so are all his problems, along with some new ones. Hank Azaria joins the fun this season as an FBI agent who's only going to complicate Ray's already tricky relationship with his father, Mickey (Jon Voight). I'm kind of over the Ray-Mickey drama but still watching for the extraordinary Paula Malcomson, who plays Ray's wife, Abby.