CBS chief Leslie Moonves raised the stakes in broadcasters’ fight with Dish Network this morning in an appearance at the Bank of America Merrill Lynch Media, Communications and Entertainment Conference. Dish’s Hopper DVR — which can automatically skip over ads in recorded network TV shows — “can’t exist,” he says. If the company continues to promote it then “we will just not be on Dish.” CBS invests millions on episodes of some shows and can’t “have the people at Dish say we can pull out the ads.” CBS and the other major broadcast networks are suing Dish, alleging that the Auto Hop DVR feature infringes on their copyrights. Dish chairman Charlie Ergen says the technology simply automates what DVR owners can already do with their remote controls.