Here are some names at ABC (WPVI, Philadephia) to send your complaints if you, like me, are experiencing NO center speaker volume during dolby broadcasts of HD (COMCAST, WPVI, Moto, digital connection to Onyko) ABC broadcasts when it goes to commercial because the Dolby flag does not get automatically reset for the "stero" commercial broadcasts. [email protected]>,[email protected], [email protected]. You can also go to WPVI.COM and submit a complaint via their WEB site...These guys were incredibley responsive, but don't appear to understand how this impacts the viewer...it is very annoying to lose the sound.....I'll paste their response below if you care to read, but essentially, they feel that it is out of their hands because they get the feed from ABC and it is already encoded "incorrectly"... Perhaps if enough people start to complain, and they realize that no one is watching ABC commercials because they can't hear them they will finally do something to correct....The below TEXT is from the response I received from James Gilbert at WPVI, ABC (Philadelphia) 2.) Why aren't we switching audio mode to stereo during break material (PSAs and/or commercials) when we're broadcasting a program in 5.1 mode? We don't find it necessary to dedicate manpower and other resources for the sole purpose of switching modes for a short period of time only to have to switch mode back again to 5.1. In addition, there is no evidence that doing this would improve anyone's viewing experience as they would still hear the intended audio through the LF and RF speakers. Further, the Dolby mode is encoded at ABC prior to WPVI decoding it. That is the way ABC is delivering it to us. We have no way of knowing which break material is in 5.1 and which is in stereo. Someday this information will be encoded in the data stream and ABC will be able to "encode" the audio mode and initiate a mode switch from their end automatically. For now, they do not intend that we switch modes during their breaks. However, "we" switch mode to stereo during WPVI originated material such as local news, local programming, syndicated shows, local commercials and PSAs.