I am noticing that some HD programming consistently sounds very good (ESPN-HD for example). On some channels though (ABC East HD - 86) it sounds like it's coming out of a tunnel and the overall volume level is quite low. Channel 86 isn't the only one. On some of the concerts they broadcast on the HD channels, I also notice very poor sound. Some of the OTA HD channels also exhibit the same behavior. Since some channels are very good, I doubt it's my equipment that is the issue. I'm guessing it's a matter of how the program was originally recorded?!?

Audio setup: Optical audio cable (Monster) from my Directv Receiver (H10) into a Yamaha HTR-5280 AV receiver.

Video setup: HDMI cable (Belkin) from Directv Receiver directly into a Samsung HLR4667W.

Thanks,
Rob