The Pembrokeshire Murders
9pm, ITV
Luke Evans stars in this harrowing three-parter telling the true story of serial killer John Cooper’s eventual conviction in 2011 for historic murders, owing to pioneering DNA evidence. In tonight’s opener, Det Supt Steve Wilkins (Evans) returns to Pembrokeshire and is stunned to discover a number of unsolved murders on the books – with the prime suspect being local burglar Cooper (Keith Allen). Wilkins rushes to gather enough evidence to convict before Cooper is released on parole. Continues nightly until Wednesday. Ammar Kalia
Junior Bake Off
5pm, Channel 4
The former Great British Bake off contestant Liam Charles returns to judge the latest series of the bitesize Bake Off competition, with new addition pastry chef Ravneet Gill and co-hosting duties by the enthusiastic Harry Hill. Eight hopefuls enter the tent, tasked with making a sponge and jelly concoction, as well as a fantasy cake themed around their wildest dreams. AK
Food Unwrapped’s Healthy New Year
8pm, Channel 4
January heralds peak dieting season and the Food Unwrapped team is on hand to promote healthy ways of slimming without making drastic changes to your menu. Matt Tebbutt is tasked with finding a low-fat cheeseboard, while Kate Quilton explores how chewing gum can affect our appetite and Briony May Williams is on hand to try some low-calorie cakes. AK
Traces
9pm, BBC One
Episode three of the knotty Dundee-set investigative thriller that is as hedonistic as it is forensic. If the cold case/deadly nightclub fire dual plots can sometimes seem a little convoluted, there is plenty to savour in the performances: tonight is a spotlight for John Gordon Sinclair as sleazy biker dad Drew. Graeme Virtue
Death in Bollywood
9pm, BBC Two
British-American actor Jiah Khan was in the early stages of a Bollywood career and dating fellow actor Sooraj Pancholi when she was found dead in Mumbai in 2013. Police ruled it a suicide but her parents believe otherwise. This three-part documentary follows Khan’s mother Rabbiya and her quest for answers. AK
Mark Kermode’s Secrets of Cinema
9pm, BBC Four
What makes a British comedy film? Affection for the underdog? A preoccupation with class? A bit of oddly non-raunchy sex? As he returns for a third series of this cinema strand, the Observer’s Mark Kermode runs the rule over the British comedy, exploring both classics and cult gems. Phil Harrison
Film choice
Logan (James Mangold, 2017) 9pm, Film4
There’s a poignant, late-period feel to James Mangold’s final instalment of the razor-clawed X-Man’s adventures. Hugh Jackman’s Logan, AKA Wolverine, is lying low, boozing and caring for frail old Prof Xavier (Patrick Stewart). But faced with Richard E Grant’s evil eugenicist, he will have to unsheath those claws once more. Paul Howlett
Live sport
Snooker: The Masters 1pm, BBC Two. Day two of the tournament from Alexandra Palace.
FA Cup Football: Stockport County v West Ham United 7pm, BT Sport 1. Coverage of the third-round match from Edgeley Park.
Scottish Premiership Football: Celtic v Hibernian 7pm, Sky Sports. Main Event. Top-flight clash from Celtic Park.
