They are sexist pigs, that's why. It's all about entertainment, not news. Like Brave New World or 1984...people are just stimulated by the images they see and there's no real discussion of serious issues.
I certainly do not watch Fox News for their attractive women. Damn near all the Spanish speaking channels blow Fox out of the water in the "attractive women" department. Them gals show A LOT more leg and cleavage, even their news commentators, so much so, that I hardly care that I hardly understand them. And don't even get me started on the gals that are on their soap operas! Aye carumba!