Bates Motel (8pm, A&E) - If you haven't watched the new A&E series that serves as a sort of modern-day prequel to Alfred Hitchcock's "Psycho," there's a marathon of the four episodes that have aired starting tonight at 8 (and it seems to start over at midnight). I like it a lot. New episodes air on Monday nights at 10.
Stalkers (8pm, Lifetime) - In this new Lifetime movie, a volatile cop with a troubled past teams up with a polished DA to capture a stalker who is obsessed with a former lover. Adrienne reviews.
Doctor Who (8pm, BBC America) - The Doctor and Clara land on a Russian nuclear submarine in 1983 as it spirals into the ocean depths with an alien creature creating havoc on board.
Bet On Your Baby (8pm, ABC) - Toddlers clean up toys and stack cookies in the series premiere of this game show, in which parents attempt to guess what their babies will do. I personally can't imagine anything more tedious. Except maybe that there's a second episode airing at 9.
My Cat from Hell (8pm, Animal Planet) - Jackson helps a 95-year-old woman suffers violent attacks by her cat. Later, a woman who lives in a studio apartment with two cats that hate each other.
Orphan Black (9pm, BBC America) - Sarah's fake detective ruse stretches thin when the police find the body that she buried.
Smash (9pm, NBC) - Tom's overeagerness may hurt "Bombshell" as he and Julia prepare the show for previews. Meanwhile, Ivy has an onstage blunder, which leads her to make an important decision.
Louis C.K.: Oh My God (10pm, HBO) - Comedian Louis C.K. performs his comedy act, which includes routines on humans and the food chain, the merits of divorce, and murder and the law.
Saturday Night Live (11:29, NBC) - Vince Vaughn is the host, with musical guest Miguel.