I dunno though they are often filming in inaccessible places in savage conditions... surely it must cost more than reality shows and the like. All these TOWIE and the like and spin-offs with reality 'personalities' (who came up with that cruel name?) are at least one rung below.
In fact, when you think about it, you've got those "reality" shows like Big Brother, you've got cookery contests, you've got people losing weight, you've got dating shows, clips shows talking about youtube videos with absolute nonentities as talking heads.... you've got all kinds of shit that has to be way easier and cheaper to do than film night time snow rescues in Finland or whatever. I think that by the standards of shit television that is churned out by the hour for channels whose name you can't even remember, stuff about driving in weird places is near the top in terms of cost and production levels and even educational value. It's not Premier League of course, but in terms of the division it's in it's fighting for promotion.