I just noticed yesterday that I am having issues with the sound from the CBS HD channel here in Chicago coming through Comcast.
I have a newer comcast box with the HDMI outputs but am currently using the component outs for video and digital coax for audio That goes to my Denon 2805 receiver which is then connected to a 5.1 speaker setup and a plasma tv via components.
The receiver shows that the audio is coming in as Dolby Digital but with only the FL and FR audio channels. All the other HD channels come in as Dolby Digital but with 5.1 audio channels.
I saw some posts in another forum on this site where a couple people were also having audio issues during the football game yesterday. For me, I was able to hear the crowd noise, the stadium announcer and the referee but that was it. Even the commercials were silent (no real complaints there). For the other people that were having issues, it seemed to eventually clear up for them.
As I was researching this issue, I started getting sound but only from the FL channel. I have another older hd comcast box in another room connected to a less sophisticated receiver and tv and the audio sounds fine.
Not really sure what could be going on--is it the broadcast, is it the receiver? Combination of both?