Doctor Who: A Christmas Story (BBC America): Repeat. In order to save Amy and Rory, who are trapped on a crashing space liner, The Doctor must save the soul of a lonely miser. Runs 80 minutes. Plays again later.
Doctor Who: The Doctor, the Witch and the Wardrobe (BBC America): Repeat. After being evacuated to an old house in Dorset, a woman and her children encounter the Doctor. Runs 80 minutes. Plays again later.
Doctor Who: The Snowmen (BBC America): Repeat. Though saddened by the loss of his companions, the Doctor helps a young governess battle a frosty menace. Runs 80 minutes. Plays again later.
Castle (TNT): Five episodes tonight.
Christmas Movies (Hallmark Channel): Has made for TV Christmas movies all day.
Christmas Rom-Coms (ION): Has 10 made for TV Christmas rom-coms today.
Christmas Rom-Coms (Lifetime): Has eight made for TV Christmas rom-coms today.
A Christmas Story (TBS): The 24-hour marathon begins tonight.
Doctor Who (BBC America): Has 12 episodes today followed by three Christmas special episodes.
House (Cloo): Has 24 episodes today.
The Jeffersons (TV One): Has 12 episodes early.
Law & Order: Special Victims Unit (USA Network): Has 16 episodes today.
Malcolm in the Middle (IFC): Has 24 episodes starting really early.
Modern Family (USA Network): Has 11 episodes tonight.
Roots (BET): The 12-hour miniseries replays.
The Santa Clause 1-3 (ABC Family): The trilogy starring Tim Allen in the middle of seven Christmas movies today.
The Unit (UniversalHD): Has 24 episodes today.
The Wayans Bros. (Centric): Has 22 episodes.