The Great Christmas Light Fight, 8 p.m., ABC
Four households attempt to outdo each other with outlandish Christmas decorations, all in the hopes they can nab a grand prize worth tens of thousands of dollars ... that they'll likely just spend on more Christmas decorations.
SEASON FINALE Jane the Virgin, 9 p.m., CW
This show should feel mighty good about itself heading into this fall finale: The CW dramedy was just nominated for a Golden Globe award for Best TV Comedy. Not bad for a freshman series that airs on a little-watched network. Just proves what us Jane fans have known all along: This show is really good.
A Charlie Brown Christmas, 8 p.m., ABC
In case you missed the airing earlier this month.
SEASON FINALE MasterChef Junior, 8 p.m., Fox
Over already? Yep, one youngster is crowned the winner in this finale of the show's second season. But not to worry: Fox has a third season queued up for 2015!
Elf: Buddy's Musical Christmas, 8 p.m., NBC
This new special uses stop-motion animation to put a spin on the Will Ferrell movie Elf, with The Big Bang Theory Emmy winner Jim Parsons as the voice of Buddy.
Disney Prep & Landing, 9 p.m., ABC
Animated special about a member of Santa's elite elf team who was hoping for a promotion and instead has to train an annoyingly overzealous new assistant. Wow, elves have workplace problems just like us. Who knew?
The Voice, 9 p.m., NBC
Well, we know one thing about the winner that will be crowned tonight: It'll be a guy. Last week, Team Adam's Damien became the fourth "wild card" contestant (a first for The Voice!) to join the other three dudes already heading into tonight's live finale: Craig Wayne Boyd of Team Blake, and Team Adam's Matt McAndrew and Chris Jamison.
Michael Buble's Christmas in New York, 8 p.m. NBC
Buble hosts his fourth annual holiday special, but this time he's nabbed a guest worth celebrating: Barbra Streisand! Ariana Grande, Radio City Music Hall's Rockettes and Miss Piggy also show up.
The Sing-Off, 9 p.m., NBC
The a cappella singing contest is back, with Nick Lachey hosting as six groups compete for $50,000. But don't write off the short-lived reality show: Season 3 winners Pentatonix have become a Christmas-carol-singing phenomenon.
The Colbert Report, 8 p.m., Comedy Central
It's time to say goodbye to one of America's most brilliant, truthiest political satirists. This is Stephen Colbert's last show as Colbert Report star "Stephen Colbert," the faux conservative blowhard he plays, but it's not the last time we'll see him in late night. He's leaving to take over for David Letterman as host of the Late Show on CBS (no date has been announced yet, though Letterman's last day is May 20), a choice that will put to use his expert interviewing techniques, humor and ability to look dapper in a suit.
A Home for the Holidays, 9 p.m., CBS
The annual special combines musical performances with heartwarming stories of adoption, which is basically all we want from our holiday television specials. Jennifer Hudson, Train, Katharine McPhee and Earth, Wind & Fire are among the performers.