"Since Obama came into office, Fox has continued not only winning, but doing so at unprecedented levels. As the Hollywood Reporter noted last week, the network is having its "best year yet," with the competition in the ratings, shifting from not only the news networks but all of basic cable."
Fox did it by tapping into the communication style of the American people,savvier, lively, upbeat, funny : How Fox News Opened America. This had been untapped by the Big Media. They still can't figure out how to compete against it. The liberal, condescending, pole-up-the-ass style of the big three network news conglomerates which "talk down" to the American people in insulting ways(violation of the fundamental principles of salesmanship) doesn't work. Fox is killing them because they don't connect with the American people colloquially in communication style. It comes across as fake and insincere.