Lose a Stone In 4 Weeks for Summer (C5, 7.30pm)

DESPITE often setting off with good intentions, what many people who embark on a diet find is that after a while, it all gets a bit, well, boring. Even worse, if they don’t see an immediate impact on their bodies, it’s highly likely they will give up on the idea altogether. Such people might be interested in watching this programme, because its focus is on short, sharp eating regimes. Ruth Langsford hosts.

Britain’s Most Beautiful Landscapes: The Causeway Coast (More4, 9pm)

IN this episode, we journey along Northern Ireland’s Causeway Coast, starting in Derry and ending in the great city of Belfast. The soaring heights of Mount Binevenagh, with a lake perched on its summit, takes us down to a coastal trajectory that leads us eastwards to a great natural phenomenon – the Giant’s Causeway. We then head to a part of the coast that has posed great dangers to seafarers for many centuries and almost seems to touch the Mull of Kintyre in Scotland. Then, arriving in Belfast, we visit the site where the Titanic was constructed over 100 years ago.

Great British Gardens with Carol Klein (C5, 9pm)

COLTON Manor in the peaceful Northamptonshire countryside is the green-fingered guru’s latest destination. In 1990, the 17th-century property and its 10 acres of gardens were inherited by Susie Pasley-Tyler following her mother-in-law’s death. Despite having virtually no gardening experience whatsoever, Susie has transformed the place into an exhibition of creative and dramatic planting schemes that change with the passing seasons. She offers Carol a tour of its wild and more formal areas, which are home to wild fowl and flamingos.

24 Hours in A&E (C4, 9pm)

TONIGHT’S episode promises to be even more enthralling than usual. It focuses on a nurse who reveals why she loves her job so much. Also featured are a 93-year-old man whose low heart rate, dizziness and confusion suggest he needs a new pacemaker, a construction worker with a crushed finger and a philosophical outlook, and a haemophiliac, who describes living with his condition.