I have the 811 HD reciever from Dishnetwork. I have the TNTHD, ESPNHD,HDnet, HDnetMovie,DiscoveryHD,HBOHD and ShowtimeHD. Only ESPNHD are up to High definition quality. All the others look like DVD quality. It was razer sharp when i watched DiscoveryHD with comcast HD reviever (My wife and little boy really enjoy it), but not the dishnetwork HD receiver. In terms of sound quality, it is just plain stereo sound. I watched the "The day after tomorrow", "I Robot". The sound was awesome.

Thanks,

Han