Celebrities on the NHS Frontline, BBC1, 9pm

CONCLUSION of the two-part documentary in which four famous faces work alongside the staff of King’s College Hospital, London. Ann Widdecombe tackles the bed crisis head-on by becoming a bed manager, while Stacey Dooley is in the cardiac unit – the first of its kind to treat heart attacks while they are happening. Jonnie Peacock discovers how the staff look after their most vulnerable child patients, and as Michael Mosley shadows the junior doctors treating injuries and diseases of the neck, he wants to know what gives them the strength, knowing they face 18 years of training to become a consultant.

Nando’s: A PERi PERi Big Success, C5, 9pm

IT was founded by Fernando Duarte and Robert Brozin in the Johannesburg suburb Rosettenville in 1987 when they visited a restaurant called Chickenland, and now Nando’s has over 1000 restaurants across the globe, with 400 in the UK alone. So what is the secret of its success? This documentary tells the story of the food chain from the company’s humble beginnings to the multi-million-pound brand it is today.

Who Killed Sharon Birchwood: Police Tapes, STV, 9pm

IN December 2007, Sharon Birchwood, a woman with no enemies or criminal connections, was murdered at her bungalow in Surrey. Her body was found by her ex-husband Graham Birchwood, who quickly became prime suspect. But when DNA an CCTV proved he couldn’t have committed the crime, police were back at square one. Here, Susanna Reid gains privileged access to police recordings made during the investigation.

Keith Lemon: Coming in America, STV2, 10pm

JAMES Corden has landed his own chat show in the US, so why shouldn’t Celebrity Juice presenter Keith Lemon become the next Brit to make it big in America? This new series follows Lemon (and a selection of his sketch show characters, including the Urban Fox, The Big Fat Gypsy Kardashians and David Dickinson) as he sets out to do whatever it takes to conquer LA. At least he already has a selection of transatlantic celebs on side, including guest stars Sharon and Jack Osbourne and Ashley Roberts.