Doctor Who, BBC1, 5.15pm
With Doctor Who hiding from comedy antlers and Christmas carolers on a remote human colony, the last thing he needs is a crashed spaceship calling on him for help.
But that's exactly what he gets when he finds himself recruited into River Song's squad and sent on a frantic chase across the galaxy. As he heads to a destination he's been avoiding for a very long time, everything is set to be revealed for the Doctor.
Strictly Come Dancing, BBC1, 6.15pm
Claudia Winkleman and Tess Daly present the Strictly Come Dancing Christmas Special as six former contestants return to the dancefloor to win the seasonal trophy.
Abbey Clancy, Alison Hammond, Cassidy Little, Harry Judd, Lisa Snowdon, and Tom Chambers are all back in the ballroom ready to prove they haven't forgotten a thing since taking their first steps on the show. But who will lift the silver star?
Call The Midwife, BBC1, 7.15pm
Poplar is readying itself for Christmas 1960 in the seasonal special of Call The Midwife and a visit from a BBC film crew promises to make it one to remember.
But it's a difficult time of year for a grieving mother, and things at Nonnatus are tense as Sister Monica Joan determines to bring the Christmas spirit early, despite Sister Evangelina's disgust. But things take a turn when Sister Monica Joan goes missing…
Downton Abbey, ITV, 8.45pm
As 1925 comes to an end, so too does Downton Abbey in this last ever ever episode of the period drama.
The family and servants are preparing for an unforgettable New Year's Eve, but many questions remain – can Mary build bridges and get Edith her happy ending? Will Anna and Bates get the day they've been waiting for? Has Daisy missed her chance with a suitor? And will Robert learn the value of independence?
Alan Carr: Chatty Man Christmas Special, C4, 9pm
It's a very special festive edition of Alan Carr: Chatty Man this Christmas Day as he welcomes his unique house band to entertain us and several celebs too.
Catherine Tate's Nan, Keith Lemon, Lorraine Kelly, Emma Willis, Marvin Humes, Gogglebox's Steph and Dom, Samuel L. Jackson, and John Bishop are all joining in, and music comes from Little Mix and One Direction.
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