I don't watch this or most reality TV shows anymore, had more than enough of them.
G/F & MIL do though, & consequently I've wandered in & out of the room maybe 8-10 times since this series started (I can't even stand to be in the same room as shows like Britain's Got Talent but I do have to refill my glass & the fridge is downstairs). Literally EVERY time I've wandered past the contestant has been a "joke" contestant. You know, one of those "look, this contestant is shit, isn't that SO fXXXking funny!!!!" type of contestants. 8-10 times. Not NEARLY every time, I mean every single time.
I honestly can't think what barrel you'd have to scrape shit from the bottom of - or for how long you'd need to do it - before you'd finally get to the bit where the producers of ITV shows reside.