In my opinion, I think they should give X Factor a rest and replace it with Britains Got Talent in the autumn/winter season. It's more entertaining than X Factor, plus, doesn't it get more viewers too?
Considering a few years back prime tv was stuggling to get near 10mill (exc soaps), with bgt and x-factor regularly getting 12-16mill in a multi channel age it's demostrates get programmes people like then you'll get the viewers for the advertisers