7 p.m. on CW

Supergirl The first rule of an alien fight club is ... well, if you know the first rule of a human one, you can guess. “Survivors” revolves around such a secret setup for those from other worlds, and Kara and Alex (Melissa Benoist, Chyler Leigh) discover it while probing a murder. The sinister Roulette (guest star Dichen Lachman) runs the physically brutal operation. Hank (David Harewood) tries to forge a connection with M’Gann (guest star Sharon Leal).

7 p.m. on FOX So You Think You Can Dance Hollywood is sometimes called “the dream factory,” so it’s hardly surprising that the judging panel is still in the City of Angels for the new “Los Angeles Auditions No. 2.” As the hopefuls give it their all in a bid to make it to the callback round, it’s bittersweet to remember they’re dancing here more or less freestyle. Once they advance to later rounds and must contend with technical factors they’re not used to, many will fall by the wayside quickly.

7 p.m. on CBS Kevin Can Wait Intrigued by how much fun Donna (Erinn Hayes) appears to have with her fellow book-club members, Kevin (Kevin James) tries to discover ways to make his gatherings with his pals equally spirited in “Kevin and Donna’s Book Club.” He begins associating with the women so often, Donna eventually has to say something to him about it. Taylor Spreitler and Ryan Cartwright also star.

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