Eurovision, You Decide is on BBC Two at 7.30pm.

Mel Giedroyc hosts as musical performers compete to represent the UK at this year’s Eurovision Song Contest.

Grantchester is on ITV at 9pm.

Will asks Geordie for help, after he receives a phone call informing him that his father is in trouble.

Secret Scotland is on Channel Five at 8pm.

Comedian Susan Calman begins a five-part journey around her home country, starting in Edinburgh.

Jamie and Jimmy’s Friday Night Feast is on Channel Four at 8pm.

Davina McCall arrives in Southend cafe, where a slow-cooked rabbit casserole is on the menu.

The Defiant Ones is on BBC Four at 10pm.

This six-part music documentary tells the stories of hip-hop moguls Jimmy Io veen and Dr Dre.

Humpback Whales, A Detective Story is on BBC Two at 9pm.

Documentary in which Tom Mustill revisits Monterey Bay in California, three years after surviving a near-death incident involving a 30-ton humpback whale.

The Last Leg is on Channel Four at 10pm.

Actor and comedian David Mitchell joins the regulars for a light-hearted review of the week.