Jack and Paco question Kent's co-workers and find out his "real" name, Kent Grainger, but no records are found about him. When going through files from the auto shop, Paco discovers a Xerox of Kent's I.D. Kent visits Betty at the hospital; she takes him to the morgue so they won't be seen, where he proceeds to break up with her, fearing that the police will catch them both if they don't part ways. Kent dyes his hair in an attempt to conceal his identity. His acquaintance, Bobby, creates new I.D.'s for him; he then ties her up and locks her in a closet. Meanwhile, Betty disguises herself as a makeup lady and visits Jack's wife, Allison, at their home. When leaving, she takes a photo of the family and a set of keys to the house. Mary calls the police's hotline to give Kent's address, but her dyslexia mixes up the house number. Elsewhere, during a live interview on Eyewitness News, Karen gets a call from Kent, who says that the story hasn't yet had its climactic ending. Diver identifies a song playing in the background of the call as "Suicide Solution" by Ozzy Osbourne, and suggests Kent might kill himself. When the police realize Mary's mistake, they arrive at her house just as Kent causes an explosion in his home across the street. Betty arrives home, thinking Kent is dead, but he surprises her with the fact that the burned corpse belongs to Jimmy. As the two kiss, the residents of Los Angeles think the Hollywood Slayer's reign of terror has ended.

As the murder trial continues, Steven's attorneys present their case that law enforcement officials planted evidence to frame him.

It's Christmas Day on a remote human colony and the Doctor is hiding from Christmas Carols and Comedy Antlers. But when a crashed spaceship calls upon the Doctor for help, he finds himself recruited into River Song's squad and hurled into a fast and frantic chase across the galaxy.

You can't have too much Strictly at this time of year. Six former contestants will be rocking around the Christmas tree to themes including Alice in Wonderland, Jack Frost and Scrooge. There are also several dance sequences that were filmed in the Great Hall of Hogwarts Castle, and a performance by Shirley Bassey.

While 2013 winner Abbey Clancy has admitted she’s out of practice and had "forgotten how many stamina and strength you need" for this, the dancing should be sublime: Tom Chambers and Harry Judd are in the line-up, for goodness' sake.

Thanks to an unexpected surprise, the Christmas magic can find place in a grieving mother's home, while Nonnatus is rocked to the core when one of its own goes missing.

Mary endeavours to build bridges with her sister while Edith's secret continues to pose a threat, despite having nothing left to lose. As Henry settles into the role of husband and stepfather, finding his place at Downton proves more difficult. Below stairs, Carson faces some personal challenges, which prove that even he is not invulnerable to change.

Agnes Brown is determined to have a wonderful Christmas this year, but it isn't going like she planned it: Mark and Betty are rowing over the reappearance of his first love, Bubbles; the carol singers are haunting her; and Buster is installing an unusual Christmas tree...

With Bill Bailey, Jenny Eclair and Johnny Vegas.