Hollie Richardson, Hannah Verdier, Alexi Duggins, Ali Catterall and Phil Hoad
More fun with this adaptation of Anthony Horowitz's "story-within-a-story" whodunnit. Former book editor Susan (Lesley Manville) has been lured from her Crete hotel with fiance Andreas to help with another murder mystery that mirrors her bestselling novelist's books. As she tries to find out who really killed a man called Frank Parris, the plot thickens when she learns that he had consulted a lawyer about an inheritance. Mark Gatiss and Claire Rushbrook also star. Hollie Richardson
7.05pm, BBC One
There's no post-Blackpool comedown for the remaining couples as they go straight into the show's inaugural samba-thon. Judges will eliminate them as they go along (calm down, from the samba, not the whole competition), giving out points before the public have their say. It's all about the hips and the bounce, so who will triumph? Hannah Verdier
8.25pm, Channel 4
Sally Phillips's 30-year comedy career includes Smack the Pony, Alan Partridge and Bridget Jones's Diary, and she has more recently starred in We Might Regret This. She tells Lenny Henry her biggest influences, from The Goodies and Seinfeld to French and Saunders. HR
9pm, BBC Four
For the third season of this Norwegian oil industry drama, the industrial accidents are soundtracked by Simple Minds as the action fast-forwards seven years to 1987. Business is booming, but will everyone get a share of the profits? And who will take over the company? Alexi Duggins
9.25pm, BBC Two
It's the concluding part of this boyband extravaganza and we've reached the 00s - 5ive, Take That and 911 are no more, but four-piece Blue (who were born from a focus group) emerged from the shadows. We then get into the murkier years: the dawn of Simon Cowell and TV talent shows. HR
10.30pm, BBC Two
With the release of new documentary Pauline Black: A 2-Tone Story, the Selecter's frontwoman joins Jools for a chat. Elsewhere, St Vincent performs songs from her latest album (awarded the full five stars from this newspaper), plus music from Foals' Yannis Philippakis, Ghanaian-born singer KOG, Arooj Aftab, Jalen Ngonda and pianist Joe Webb. Ali Catterall
Spellbound, out now, Netflix
A very solid first release for former Pixar head honcho John Lasseter's new animation outfit Skydance, this new CGI fairytale saddles teenage princess Ellian (voiced by Rachel Zegler) with reversing the curse that turned her royal parents into cute monsters (read: giant house pets, voiced by Javier Bardem and Nicole Kidman, both having enormous fun). The animation is stunning, with Maurice Sendak-style critter designs and intricate detail aplenty. And the songs - such as the samba extravaganza about adventurous eating - are actually memorable. Rooted in a quest narrative that occasionally dips into a group therapy session, it builds into a surprisingly moving parable about adult responsibility. Phil Hoad
Event Horizon, 1.40am, Film4
Directed by the other Paul (WS) Anderson, this sci-fi horror blow-out was a flop on release in 1997, but has deservedly acquired cult status since. Cleaving to the Aliens voyage-into-the-unknown template, Laurence Fishburne leads his crew on a mission to Neptune to salvage a vessel with an experimental warp drive that has ripped a hole in the fabric of reality. Channelling Hellraiser's Pinhead, you've never seen cuddly Sam Neill on such unsettling form as the technological genius becoming one with his creation. It gets a little schlocky, but always retains a disturbing bite. PH
Snooker: UK Championship, 1.15pm, BBC One The afternoon session on day one from the Barbican, York.
Premier League Football: Man City v Tottenham, 5pm, Sky Sports Main Event From the Etihad Stadium, Manchester. Leicester v Chelsea is on at 11am on TNT Sports 1.
International Rugby Union: Wales v South Africa, 5.15pm, TNT Sports 2 From the Millennium Stadium, Cardiff.
LPGA Tour Golf: CME Group Tour Championship, 7pm, Sky Sports Golf Last year's champion Amy Yang (above) defends her title.