Internet TV is not saving the day for Dish Network, which is hemorrhaging traditional pay-TV customers at a seemingly unprecedented rate.Since Dish launched Sling this past February, the company has signed up an estimated 394,000 subscribers for the cheaper, slimmed-down over-the-top TV package priced starting at $20 per month, according to MoffettNathanson analyst Craig Moffett. That would include a net gain of 155,000 for the third quarter of 2015.That implies Dish dropped 178,000 satellite subscribers in Q3, which would mark its worst quarterly loss ever. “That’s dramatically worse than the 12K subscriber loss from a year ago, and leaves Dish’s traditional subscriber base shrinking at a shocking 3.7% annual rate,” Moffett wrote. (Dish does not disclose quarterly figures for satellite TV customers; it now combines traditional pay-TV and Sling TV customers into its total subscriber numbers.)CEO Charlie Ergen reiterated the outline of the Sling TV strategy to investors Monday, saying the skinnier Sling TV over-the-top offering is designed to appeal to younger, millennial consumers who aren’t interested in a taking a full pay-TV package.