What to watch this week.
Long Lost Family
Davina McCall and Nicky Campbell return to help more people reunite with long-lost relatives.
After dealing with the repercussions of her actions from last year, DC Lisa Armstrong is given the opportunity to step up when asked to assist a murder investigation in Morecambe. Tensions remain high as Lisa struggles to do her job whilst following the orders of her previously lower ranking colleague, Med. As the team tries to uncover why the victim was targeted, Lisa and her children are unknowingly stalked by a mysterious figure.
The Chasers' Road Trip
Anne Hegerty, Mark Labbett and Shaun Wallace - three of the biggest brains of the quizzing world - travel the world to uncover the cognitive abilities of animals, children and artificial intelligence.
Thursday, Channel 4
Return of the comedy series starring David Mitchell and Robert Webb. After a long absence, a rejuvenated Stephen heads back to the John Barleycorn, just as Andrew is starting to feel restricted and weighed down by the mundanities of being a provincial pub landlord.
It's A Sin
Friday, Channel 4
Russell T Davies' drama, set in the 1980s during the Aids crisis, following the lives of a group of young gay men. September 1981 finds 18-year-old Ritchie leaving the Isle of Wight to go to university. In London, Roscoe walks out of parents' home, while Colin arrives from Wales to start a new career on Savile Row.