Inside No 9 has another very special guest star as Derek Jacobi joins the cast for an episode of the suspense-filled series.
Elsewhere there's more comedy on the BBC as the pilot episode of Dinosaur airs this evening for those who haven't already caught it on the iPlayer.
Plus, there's more Your Home Made Perfect and Our Cops in the North.
Your Home Made Perfect - BBC Two
Leigh-on-Sea dwellers Natasha, a project manager, and Gael, a plumber, love to host but the layout of their four-bedroom semi-detached house makes gatherings difficult.
Architects Damion Burrows and Lizzie Fraher are hoping to come up with design ideas that live up to what they both want.
Our Cops in the North - 9pm - BBC One
It's episode five of the series following Northumbria police as they go about their work.
The spotlight is on forensic investigators, response officers, neighbour teams and detectives as they investigate crimes all related in one way or another to drugs.
Elsewhere, Detective Chief Inspector John Bent investigates a deadly fire, but evidence is scarce and witnesses aren't coming forward.
Fred and Rose West: The Search for the Victims - 9pm - Channel 5
Fred and Rose West have been back in the headlines recently after potential evidence found at the Clean Plate Cafe in Gloucester suggested the body of Mary Bastholm could be buried there.
This documentary combines archive footage and testimonies to investigate her story and revisits their other 12 known victims.
Inside No 9 - 9.30pm - BBC Two
Derek Jacobi stars as Webster, a renowned barrister who is unwell and also a challenge to look after.
His carer Urban - played by Reece Shearsmith - knows how to handle him but there's something coming for the old man that will test his resolve and legal skills.
Dinosaur - 10.45pm - BBC One
This new comedy written by Matilda Curtis focuses on the character of Nina (Ashley Storrie) a young woman who's autistic - but yet to be diagnosed - and who has always felt different.
Preferring palaeontology to dating, she decides to challenge herself by going on the lookout for love when her sister gets engaged.
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