Silent Witness, BBC1, 9pm

DURING a heatwave in Brighton, the Lyell team is summoned to a waste dump where a body part has been found. The search is on to recover the other dismembered remains and piece together the victim’s body, which is covered in Japanese tattoos. Away from the lab, Nikki has some news that she desperately wants to share with Matt but must wait until he visits from America. Forensic crime drama, starring Emilia Fox, David Caves, Richard Lintern and Liz Carr.

Icons, BBC2, 9pm
SANJEEV Bhaskar assesses the legacies and achievements of Mahatma Gandhi, Helen Keller, Martin Luther King Jr and Emmeline Pankhurst – four of the 20th century’s greatest activists. Gandhi employed non-violent tactics to help secure independence for India, while the deaf and blind Keller used her fame to fight for the rights of marginalised people everywhere. King was arguably the most influential figure of the black civil rights movement in the US, while Pankhurst was a controversial figure in the fight for women’s suffrage.

Cold Feet, STV, 9pm
ADAM begins a journey of self-discovery that opens his eyes, as well as his heart, while Jenny grapples with her secret, and Pete is preoccupied with helping the troubled Evan. David struggles with being a kept man since Nikki’s windfall and Karen prepares for the twins’ 18th birthdays.

Imagine – James Graham, BBC1, 10.45pm
IT’S perhaps an odd moment to broadcast a documentary about playwright James Graham. Usually such documentaries are aired after a moment of triumph, but this one comes after his most recent project, the screenplay for Channel 4’s Brexit: The Uncivil War, disappointed in the ratings. But Alan Yentob talks to Graham while trying to figure out what makes him tick. He also learns more about his childhood in a former mining town in Nottinghamshire.