Has anyone other than me noticed that when watching a movie on some of the premium channels HBO, Showtime, Movie Channels, Encore, etc etc....everyonce in a while the screen will freeze for just a few seconds? I have been noticing this and the channel does not necessarily have to be a HD channel. Last Night While watching Die Hard with a Vengeance the screen went dark with no sound for just about 20 seconds and then it just came back. All of my signal strengths are where they have always been too. And i have nothing no trees or anything obstructing my dish point of view.