Homeland (9 p.m., Showtime) — Carrie and Saul’s mission doesn’t go as planned in the Season 7 finale. Meanwhile, Elizabethe Keane fights for her presidency.
Also on . . .
American Idol (8 p.m., ABC) — The Top 10 perform on “Disney Night.” Yay, ABC Synergy.
Golden State Killer Caught (8 p.m., Investigation Discovery) — An update on the People Magazine Investigates special includes this week’s arrest of a suspect believed to be one of the most prolific serial killers in U.S. history.
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Good Witch (9 p.m., Hallmark) — In the Season 4 premiere, Abigail helps Sam search for the perfect engagement ring for Cassie — a legendary Merriwick heirloom thought to be lost forever.