71 DEGREES NORTH
UTV, 9PM The three remaining celebs, Rav Wilding, Amy Williams (below) and Angellica Bell, must survive the night in a hand-built snow cave before swimming beneath a frozen lake in one of the harshest environments on the planet.
The final two contestants must then cross a rope bridge 300m above the ground. I'm exhausted just typing that.
eAT yourself fit
THE FOOD HOSPITAL
Channel 4, 8pm Can you treat illness through nutrition instead of using drugs? That's the question posed by the experts in this series as they go about trying to rebalance one woman's hormones through diet and helping a man who has type 2 diabetes.
Be warned, though, there are some toe-curling images along the way.
THE MOST COURAGEOUS RAID OF WORLD WAR II
BBC2, 9pm Politician and former SAS soldier Paddy Ashdown retells the terrible story of Operation Frankton, a wartime commando raid that was later made into the film, The Cockleshell Heroes.
The raid involved 12 men in canoes who had to plant limpet mines on enemy shipping in the Bordeaux estuary.
Ashdown points out that the chances of the men escaping to freedom were so remote it amounted to a suicide mission.
TV3, 10.30pm Documentary series showing the sharp end of policing as officers tackle anti-social behaviour and offences involving guns, drugs and car theft. Where are all those extra prison spaces when you need them?