Below are my picks of the most notable new shows, returning or premiering on UK screens over the next 7 days...
Hunting the Paedophiles: Inside the National Crime Agency (Channel 4, 9pm) Documentary exploring a 2013 case where hundreds of teenage boys were duped into sending nude photos of themselves to strangers they believed were teenage girls.
Reggie Yates's Extreme Britain (BBC3, 9pm) New series looking at British masculinity. (1/3)
The Royal Variety Performance 2015 (ITV, 7.30pm) Annual entertainment special attended by Prince Harry, hosted by Jack Whitehall. Featuring Elton John, Ricky Martin, Kylie Minogue, Little Mix, Beverley Knight, ELO, the Corrs, the musical Mary Poppins, Brandon Flowers, Cirque Du Soleil, Chris Ramsey, Romesh Ranganathan, Matt Forde, Josh Groban, One Direction, and more.
8 Out of 10 Cats Does Countdown (Channel 4, 9pm) Christmas special of the gameshow mashup. Guests are Johnny Vegas, Katherine Ryan & David O'Docherty.
That's So Last Century (Channel 4, 10pm) New series where celebrities get reacquainted with gadgets from their childhood, and see if modern families can do likewise. (1/3)
★ Tripped (E4, 10pm) New sci-fi comedy about two friends who travel to parallel universes. Starring Blake Harrison, George Webster, Richard Gadd, Georgina Campbell & Jamie Demetriou. (1/4)
Britain's Oldest Crooks (ITV, 9pm) Documentary about the rise of criminals over-60.
18 Kids and Counting (Channel 4, 9pm) Documentary follow-up on the Radford family, Britain's biggest family. over the course of another year.
★ Hunderby (Sky Atlantic, 10pm) Two-part special of the dark period comedy-drama. Starring Julia Davis, Alex MacQueen, Alexandra Roach, Rufus Jones & Rosie Cavaliero. (1/2)