I have a samsung dlp tv. May audio is run through an Onkyo home theatre receiver and the sound is great. However, I have one problem. I cannot get any audion on two of the channels - The Disney Channel and the Fox Movie Channel. The sound correctly comes through the a/v receiver for the 150 other channels but whenever I put on those two channels my receiver appears to be unable to decode the audio signal. I have an onky sr502 (surround dolby digital 6.1) Any thoughts? thanks