SEASON PREMIERE The Sing Off, 9 p.m., NBC
Did you know The Sing Off is a show in which 10 a capella acts do really cool versions of popular songs — or that it's been on the air for four years? Yeah, neither did we. The only thing we vaguely recall about this singing competition last time it was on is that Nick Lachey was involved. He's back as host for tonight's two-hour premiere, but this time the new (and honestly, only recognizable) judge is Jewel. Good for her, still finding ways to be employed in the music industry. The show's having a limited run that ends Dec. 23, so tune in soon to see such cleverly titled groups as acoUstiKats, the Filharmonic and VoicePlay (who got their start in Orlando!).
The Great Christmas Light Fight, 9 p.m., ABC
In this new competition series, 20 families from across America pull a Clark Griswold and go crazy decorating their houses to the extreme for Christmas. Four families compete and a winner is chosen each week, through Dec. 23. The prize? $50,000. Yeah, sure, that sounds like a lot, but have you seen their electricity bills?
Kelly Clarkson's Cautionary Christmas Music Tale, 10 p.m., NBC
Kelly Clarkson hosts her first Christmas special, a show within a show in which her character hosts a holiday special as a scheme to boost her popularity but ends up learning an important lesson, Christmas Carol-style. She's recruited an eclectic group of stars to join her, including William Shatner, Heidi Klum, Blake Shelton, Whoopi Goldberg and Robin Williams (maybe he owes her after her awesome cameo in the pilot of his new show The Crazy Ones?).
The Price Is Right, 11 a.m., CBS
Ready to feel old? Bob Barker is 90 years old. Host Drew Carey welcomes the original Price is Right host back on the show today for a special celebration.
The Millers, 8:30 p.m., CBS
Carol's (Margo Martindale) overbearing parents are coming to visit, and she doesn't want them to know the truth about her failed marriage, or her son's, so she asks her son (Will Arnett) to pretend everything's okay, and he starts thinking about reconciling with his ex (Happy Endings' Eliza Coupe). And somewhere amid all of these wonderfully talented actors, there's a great show just waiting to be made.
Parenthood, 10 p.m., NBC
We just don't think our hearts (and tear ducts) can take it if Julia and Joel's marriage is actually over. Find a way to make it work, you crazy kids!
Rudolph the Red-Nosed Reindeer, 8 p.m., CBS
Thank goodness they're re-showing this classic, after trotting it out all the way back before Thanksgiving.
It's a Wonderful Life, 8 p.m., NBC
Settle in with Jimmy Stewart and the gang for one of the most heartwarming Christmas classics of all time, and try hard not to think about what a terrible idea the planned sequel is.
Frosty the Snowman, 9 p.m., CBS
Yes, more Christmas programming. But hey, with these 80-degree temperatures, we need all the help getting into the holiday spirit we can get.