Airs: 1:00am - 2:30am on Lifetime
The designers are awakened by a surprise visitor; the designers are challenged to show their holiday spirit in the perfect party dress; channeling their own holiday memories, the designers must transform a winter wonderland into a wearable wonder.
Airs: 3:00am - 4:00am on Amazon Prime Video
Naomi and Alex work to keep the Barbapiccola in orbit amidst a power outage. Avasarala faces a tough decision. Holden and Elvi race to find a cure for a disease spreading on Ilus.
Airs: 3:00am - 4:00am on CBS All Access
An anonymous delivery sends Ashley into a dark tailspin as Rebecca, Beau and the Nashville Police search for answers. Meanwhile, Jackson and Simone's deeply-rooted family troubles bring them closer together. Tucker continues to hold a terrified Olivia hostage while concealing his secret from Maddie.
Airs: 4:00am - 4:30am on Comedy Central
Trevor covers the Democratic debate live, Jaboukie Young-White and Desi Lydic try a product for overwhelmed voters, and The Intercept's Mehdi Hasan discusses the primaries.
Conan Season 9, Episode 123
Airs: 4:00am - 5:00am on TBS
Actor Adam Sandler.
Airs: 4:30am - 5:00am on Comedy Central
Ron Funches, Greg Fitzsimmons and Nicole Byer discuss Kate Beckinsale's marriage advice, Nick Swardson calls in, and Sarah Tiana watches "Star Wars: The Rise of Skywalker".
Airs: 4:35am - 5:35am on NBC
Actress Kate McKinnon; Dua Lipa performs.
Airs: 4:35am - 5:35am on CBS
Stephen welcomes actress Jennifer Hudson, actor Jonathan Pryce, and a musical performance by Sharon Van Etten featuring Norah Jones.
Airs: 4:59am - 5:59am on Hulu
The kids try to get the message out about Morgan's phones and Molly falls for a boy while the Minorus unite as a family to steal Morgan's most prized possession.
Airs: 4:59am - 5:59am on Netflix
Nellie takes a swing at spontaneous romance. Joanna reconsiders the minor perks - and major pitfalls - of chasing passion.
Airs: 5:35am - 6:35am on CBS
James welcomes Mariah Carey Christmas Takeover (Night 3), comedy with the cast of CATS, featuring Taylor Swift, Jennifer Hudson, Rebel Wilson, Jason Derulo, and Francesca Hayward, plus composer Andrew Lloyd Webber and director Tom Hooper, and Carpool Karaoke with Billie Eilish.
Airs: 9:00am - 9:30am on DC Universe
In search of a nemesis, Harley goes after Batman, but ends up with an adolescent Robin, making her the laughing stock of the criminal underworld.
Airs: 8:30pm - 9:00pm on BBC One
Joining Rob Brydon, Lee Mack and David Mitchell are Jay Blades, Sue Johnston, Alice Levine and Bob Mortimer.
Airs: 9:00pm - 9:15pm on Cartoon Network
Oliver Queen must face off against his greatest rival yet, Mortimer Drake, while Green Arrow also finds himself up against a new foe, The Cavalier.
Airs: 9:00pm - 9:30pm on BBC One
Team captains Paul Merton and Ian Hislop are joined by guest host Charlie Brooker and panellists Emma Barnett and Phil Wang.
Airs: 10:00pm - 10:30pm on BBC TWO
Dara - Briain and Hugh Dennis mark the end of 2019 with a special show looking back on the year's events, along with unseen material, outtakes and all the usual fun.
Airs: 10:00pm - 11:00pm on Channel 4
Adam Hills, Josh Widdicombe and Alex Brooker pick over the week's biggest stories with Lorraine Kelly and Tom Allen.
Airs: 10:35pm - 11:35pm on BBC One
Together on Graham's festive sofa: from the new blockbuster Star Wars: The Rise of Skywalker, Daisy Ridley and John Boyega; Superman himself, Henry Cavill, in new fantasy drama series The Witcher; and Ruth Jones and Rob Brydon, reunited in the Gavin and Stacey Christmas Special. Plus music from Robbie Williams, performing a song from his new album The Christmas Present.