Hiding (8pm, Lifetime) - A New York City teen is placed in the witness protection program after seeing her parents killed and testifying against the son of a vicious gangster, but realizes that her life is still in danger when a ruthless hit man discovers her secret identity.
Doctor Who (8pm, BBC America) - The seventh season ends with the discovery of a secret the Doctor planned on taking to his grave.
My Cat From Hell (8pm, Animal Planet) - Jackson Galaxy helps a family whose old cat is terrorized by a younger one that's new to the household. "America's Cutest Cat" (allegedly -- my cat was not interviewed) airs at 10.
Rock 'n' Royalty: Billboard's All-Stars (9pm, ABC) - Barbara Walters hosts a look back at past interviews with music stars such as Mariah Carey, Taylor Swift, Justin Timberlake, Justin Bieber -- (remember, the word "royalty" is in the title of this program) -- Lady Gaga, Lady Antebellum and One Direction.
48 Hours (10pm, CBS) - "48 Hours" investigates drugs, guns and gangs in Chicago.
Saturday Night Live (11:29, NBC) - SNL closes out its 38th season with host Ben Affleck and music guest Kanye West.