DIY SOS, Grenfell is on BBC One at 9pm.

A two-part special of the property series, in which Nick Knowles and the team construct two community buildings in the Grenfell Tower area of west London. Concludes next week.

Trust Me, I’m a Doctor is on BBC Two at 8pm.

Return of the medical documentary series. Dr Michael Mosley finds out how learning a language could help prevent dementia.

Coronation Street’s DNA Secrets is on ITV at 9pm.

One-off documentary in which Nicky Campbell investigates the ancestry of some of the soap’s best-loved actors.

The Extreme Diet Hotel is on Channel Four at 8pm.

This one-off documentary focuses on Russian weight-loss guru Galia Grainger, who runs a diet hotel in Sussex.

Taskmaster is on Dave at 9pm.

Return of the comedy challenge series. Comedians Phil Wang, James Acaster, Jessica Knappett, Rhod Gilbert and Kerry Godliman are set unusual tasks by host Greg Davies.

American Housewife is on W at 8pm.

This US comedy series stars Katy Mixon, as a mum trying to raise her kids in a seemingly perfect neighbourhood.