Return to Zero (8pm, Lifetime) - Based on a true story, this two-and-a-half-hour Lifetime movie is about a couple who separate following the devastating loss of their first child during pregnancy, but then reunite to face another perilous pregnancy when the wife learns she’s expecting again. Stars Minnie Driver, Paul Adelstein, Alfred Molina, Connie Nielsen and Kathy Baker.
Orphan Black (9pm, Syfy) - Rachel goes on the warpath and lashes out at Sarah’s loved ones. While Sarah tries to keep them safe, an unexpected visitor threatens to derail her plans.
Saturday Night Live (11:30pm, NBC) - The season finale is hosted by former stand-out cast member Andy Samberg, with musical guest St. Vincent.