Arctic Adventure: Ultimate Survival - Channel 4
Donald Trump's favourite TV shows include Sex And The City and The Fresh Prince Of Bel Air. He appeared as a guest star on both at the height of their runs.
Whether he's a fan of Celebrity SAS: Who Dares Wins, with contestants being put through gruelling military trials by special forces veterans, is anybody's guess.
Perhaps it's easier to imagine Vladimir Putin enjoying that sort of thing.
But President Trump might have been well advised to watch Arctic Adventure: Ultimate Survival, following Celebrity SAS star Jason Fox as he led a team on a 500km (310 mile) ultramarathon across frozen wastes in northern Sweden.
Foxy is the kind of hard man who sprinkles concrete instead of sugar on his morning Weetabix.
His colleagues on the race included ex-Marine Aldo Kane, a man of such mental strength that he once spent ten days shut in a blacked-out nuclear bunker for a psychological experiment. (Other men might go mad. Aldo barely got bored.)
These obsessively prepared, intensely competitive fitness fanatics did their utmost to beat the local competitors.
They had all the kit to combat the extreme terrain and the bitter cold. Most of the Laplanders, by contrast, didn't even bother with skis: they were tackling the race on foot.
It should have been no contest . . . and it was. The winner jogged over the finish line, in minus 30°C conditions, while Foxy & Co were more than 100 miles behind. They were literally Lapped.
Arctic Adventure: Ultimate Survival follows Celebrity SAS star Jason Fox as he leads a team on a 500km (310 mile) ultramarathon across frozen wastes in northern Sweden
For The Donald, currently threatening to send U.S. troops to invade Greenland, the show ought to be a salutary warning.
No matter how well trained and equipped the American forces, they would be up against Arctic troops who thrive in conditions that are unsurvivable for most.
Jason Fox's team quickly dropped the pretence they had any hope of competing. Instead, this one-off programme took the opportunity to examine why so many former servicemen struggle with mental health problems after leaving the forces.
One of the group, ex-infantryman Brian Wood, talked openly about his years of trauma and depression, brought on by memories of killing a teenage Iraqi soldier during the Second Gulf War in 2003.
Another Iraq veteran, Karl Hinett, suffered burns across a third of his body when his Warrior armoured vehicle was hit by petrol bombs.
Aldo, whose younger sister Stroma died from cancer in 2024, was struggling with grief. Foxy trembled as he spoke of how close, at his lowest moments, he had come to taking his own life.
The men listened, and offered awkward sympathy, though they were soon back to the merciless ribbing and mockery that is their default. They'd make good mates but you wouldn't really want any of them as your therapist.
The central messages were powerful, though. Firstly, it takes a tough guy to talk about his emotions. And secondly, don't invade Greenland.