When an old Wesen tale about an evil Santa comes to light, Nick and Hank may go a little too far in their investigation in this holiday-themed episode. Elsewhere, Monroe hopes to surprise Rosalee for Christmas. CTV, 7 p.m./NBC, 8 p.m.
This new musical production, commissioned by the Minnesota Opera, focuses on Scottish, French and German soldiers who join together on Dec. 24, 1914 to celebrate peace and fellowship during the Christmas season. PBS, 8:30 p.m.
It's holiday time for the Weaver family and their alien friends in this Christmas-themed episode. After Debbie accidentally spoils Larry's festive surprise for Dick, Larry looks for a way to get even. Amber and Reggie search for perfect presents to give each other. ABC, 7:30 p.m.
George Stroumboulopoulos: Eric Schlosser
Jay Leno: Carson Daly, Billy Ray Cyrus
David Letterman: John Witherspoon, Seasick Steve
Craig Ferguson: William Shatner, Michael Sheen
Jimmy Fallon: Ralph Fiennes, Juliette Lewis