I have an 811 and a Sony (STR-DE895) receiver and I have noticed that I only get a Dolby Digital 5.1 signal for my OTA Fox and Dish channels (TNT-HD, Discovery, etc.). I notice that on ABC (I get the Washington, D.C. channels) that I don't get the 5.1 signal. I am not sure off-hand about NBC and CBS because I don't watch much if any of their HD shows. I love Lost and I noticed last week that all of the MLB games on fox were 5.1 and Lost wasn't. I had read on this forum that Lost was fantastic for sound so I was wondering what the issue could be. Are there OTA Digital channels that show HD shows, but not in 5.1 or is there an issue with the 811 receiving the signal correctly? Any help would be greatly appreciated especially since Lost is on again tonight!