Dish says: EchoStar Communications Corporation (NASDAQ: DISH) and its DISH Network satellite TV service today announced that it has signed an agreement with Nielsen Media Research for national TV ratings service. Nielsen, the leading provider of television and audience measurement services, measures the viewing habits of TV homes including DISH Network’s estimated 11.4 million customers. The deal will allow DISH Network to use Nielsen Media Research data for marketing, programming and sales research purposes. DISH Network can use the data from Nielsen to guarantee advertisers a specific number of viewers for their advertisements.