Crazy Ex-Girlfriend [CW, 8pm]
Rebecca is “so happy that Josh is happy!” which somehow results in an arrival from Dr. Phil. If there’s truly a God in heaven, he’ll sing and dance in one of her vivid, charming fantasy.
It’s Your 50th Christmas, Charlie Brown [ABC, 8pm]
It’s a good bunch of men (and women) feting Charlie Brown and his yuletide staple — led by eternal charmer Kristen Bell. If there’s this has potential to descend into a Lowe-and-Snow spectacle of silliness, all the more reason to watch.
Supergirl [CBS, 8pm]
Figuring out your twenties is confusing enough, but see what happens when you add being superhuman in the mix. Follow Kara Zor-El as she finally comes to terms with being a hero in this drama based on the DC comics character.