Back to the Land with Kate Humble, BBC 2, 7pm

THE broadcaster chats to a father-and-son team who own the first caviar farm in the UK that harvests sturgeon eggs ethically and humanely, and who are embarking on their own breeding programme, which could make or break the business. Kate also meets a family who have diversified into growing hemp on an industrial scale, before visiting a woman who crafts Whitby jet in its raw form, then polishes, shapes and works it into silver and gold jewellery which she smiths herself.

Heart Transplant: A Chance To Live, BBC 2, 9pm

IT’S 50 years since the first British heart transplant, but while that breakthrough has given new hope, patients still face an agonising wait

due a shortage of suitable organs. On average, it takes 1200 days for the operation to take place, and last year more than 30 people died waiting. And, once a heart does become available, the surgeons and hospital staff work against the clock to perform this highly complex operation. However, a new process could potentially double the number of transplants taking place in this country.

Catching a Killer: A Knock at the Door, Channel 4, 9pm

CAMERAS follow Thames Valley Police’s investigation into the murder of 64-year-old Hang Yin Leung, who died after being violently assaulted during a burglary at her Milton Keynes home in January 2017. Filmed over 12 months, the programme interweaves the police’s inquiries with an intimate portrait of a British-Chinese family coming to terms with the impact of murder, and with the story of migrants from Hong Kong who came to the UK in search of a better life.

Myanmar’s Killing Fields

Channel 4, 10.20pm

FOR the past five years, an undercover network of Rohingya activists have been risking their lives to secretly film evidence of years of repression, violence and mass murder by the Myanmar authorities. This Dispatches special has been given exclusive access to hundreds of their videos and a first interview with the network to provide the most complete

account of how ethnic tension degenerated into what some are calling state-sanctioned genocide.