I know why Infomaniac used the term "downmarket", maybe not quite the right term but it is cheap and easy-to-make TV that depends on non-professionals for the entertainment, but I've certainly enjoyed it a fair bit. I think I've seen enough of it now though, and these old ones are doing the rounds for the umpteenth time. It did seem to me that the most annoying person seeemd to win it quite a bit.
By the way Unsureme, someone using the term "downmarket" doesn't make them "arty-farty" (itself an often mis-used term).