The blurb doesn't make me think they've got anything like a good perspective: "talking to the young men who routinely pay for sex about why they do it, and to the young women who sell their bodies about what's in it for them"..
.. but as ever it depends on who they've talked to. Interestingly, they've gone for the 100,000 figure rather than the more common (and still wrong) 70,000 one.
As well as iPlayer, it's repeated at 01:35am and on 02:00am in the early hours of Thursday.