Confessions from the Underground - 10pm, C4
London Underground staff often have to keep the bodies of people who've committed suicide in store cupboards while they wait for an undertaker, they reveal tonight in a documentary exploring the work involved in keeping a billion travellers moving around the metropolis.
This is just one of the Confessions From The Underground, a programme providing an insight into the engine room, and just what an intensive amount of labour is involved on a daily basis, when personnel have to deal with everything from signal failures to suicides, hazards to hostile passengers.
At last, the Tube gets the television treatment afforded airlines and other service industries. Who knows, on Friday morning, there might be a few more smiles of appreciation on the escalators, as well as some tentative looks at the store cupboards tucked into the arches.
What else is on the box? Here are a couple of our picks:
Raymond Blanc: The Very Hungry Frenchman - 8pm, BBC2
Something for cookery fans missing the warm weather and contagious enthusiasm of Sicily Unpacked. Same enthusiasm and expertise, different country, as we follow Raymond Blanc wander through his homeland of France, stopping to chat, drink wine and swap cooking tips with the locals. You might want to get in your car and head across the Channel after this. Particularly heart-warming is Blanc's return to his own village near the Swiss border, where his 90-year-old mother awaits.
Inside Men - 9pm, BBC1
A thrilling account of good men gone bad, told in four-part drama, entirely through the eyes of the protagonists - and also a subliminal study into what invisible social strings, if any, keep people on the straight and narrow in the first place. High-quality stuff, upgraded further by the presence of always-excellent Stephen Mackintosh, of whom we do not see enough on our screens.
Here are some pics from Inside Men: