I don't watch all cookery programmes, I like Nigella a bit of up beat escapism and quite staged, but I'm fine with her off the wall style, I first saw her eons ago, was only aware of her as Nigel Lawson's daughter, introduced by Nigel Slater on one of his cookery programmes, who I also really like. Cut my teeth on down to earth Delia, those programmes she did way back were an inspiration at the time. I've also watched Jamie Oliver and enjoyed his style but would agree some of his recipes are not as simple as they are purported to be.
Am I alone in thinking Heston Blumenthal's programme was the most boring cookery programme ever presented, not interested in that science laboratory style of his personally I have a friend who sampled his tasting menu at The Fat Duck in Bray, snail porridge and more of a similar load of bollocks slightly unusual fare, all costing an arm and a leg, anyway she's still alive!