(CNNMoney) As Fox News enters its fourth week without carriage on the Dish Network, it is making a sensational new charge: "They're censoring what you see." Bill O'Reilly says so in a new commercial that Fox began to televise over the weekend. "Dish has dropped Fox News. Now you should drop Dish," O'Reilly declares. The ad is a dramatic escalation in the war of words between the cable news channel, a unit of Twenty-first Century Fox (FOX), and Dish, the satellite company that delivers TV to 14 million households.