Finding Mrs. Claus Sunday at 9 p.m., Lifetime
You’ve got to love holiday TV movies. They’re unapologetically bad and schmaltzy, despite the fact that we live in rather cynical times. This one stars Mira Sorvino, who won an Oscar for “Mighty Aphrodite,” as the wife of the big man. She’s feeling neglected by Santa, who is played by Will Sasso, so she goes to Las Vegas to help a kid get her Christmas wish.
Boardwalk Empire Sunday at 9 p.m., HBO
Why does this show keep killing off its best characters? Still, “Boardwalk Empire” has had a strong if uneven season. The overall plot of Nucky’s possible downfall has been rote, but the side stories — of Margaret and Owen, Richard and Julia, Gillian and Scarecrow Jimmy — have been engaging and mysterious. Sunday night, the series finishes up season 3, and HBO has already renewed it for season 4. That probably means a cliffhanger or two.
Dexter Sunday at 9 p.m., Showtime
I used to love you, but it’s all over now.
The Good Wife Sunday at 9:30 p.m., Channel 4
Cut the hairspray budget, to avert the fiscal cliff.
Oprah’s Next Chapter Sunday at 9 p.m., OWN
Field, Spielberg, and Day-Lewis, for some reason.Matthew Gilbert can be reached at firstname.lastname@example.org. Follow him on Twitter @MatthewGilbert.