The Great Celebrity Bake Off is on Channel 4 at 8pm.

Comedian Harry Hill, actor Martin Kemp, comedian Roisin Conaty and broadcaster Bill Turnbull take part in the first of four charity specials.

Seven Year Switch is on Channel 4 at 9.15pm.

This six-part series follows four couples who are hoping to save their failing relationships in an unusual way, by switching partners.

Shetland is on BBC One at 9pm.

Detectives Perez and Tosh receive a warning from the Norwegian Secret Service.

Wild Britain is on channel 5 at 9pm.

Documentary series focusing on the hidden lives of wildlife in the United Kingdom, beginning in the Caledonian Forest.

This Country is on BBC One at 10.45pm.

Return of the comedy starring Daisy May Cooper. Kerry is determined to turn over a new leaf.

Liverpool versus Porto is on BT Sport 3 at 7pm.

The Reds have a five nil first-leg lead in this Champions League second-leg match held at Anfield. Kick-off 7.45pm.

Divorce is on Sky Atlantic at 10.10pm.

Newly divorced Frances is set up on a blind date.