I've watched some depressingly grim content from Channel 4 in recent months. There was Open House: The Great Sex Experiment, showing couples checking in to a swinger's retreat to 'test' their relationships.
More recently came Virgin Island, where a group of shy virgins were deflowered by sex surrogates. Naturally, both were dressed up as important social experiments.
But the documentary 1000 Men and Me takes the broadcaster's shock content to a depressing new level.
So disturbing is it to witness the behind-the-scenes story of porn star Bonnie Blue - and her desire to become rich and famous by being violated in the most humiliating way imaginable - that as the viewer you come away feeling tainted and grubby.
Filmed over six months the documentary follows Blue, 26, real name Tia Billinger, in the build-up to her sickening 1000 man sex stunt, and the fallout that follows.
