Hi, ever since I moved about 18 months ago, channel 576 HD has not worked. It always freezes and is pixelated. The channel is unwatchable which stinks because of inability to watch the flyers, etc. I am forced to watch these games on the non-HD option (channel 76). I have a nice big TV and would really like to watch this in HD but after several calls to tech support and on-site tech visits, no one can figure out why it does t work. Does anyone know a way I can resolve this?