We are new to HDTV and just got an HR20 last week. The picture is great, but we are experiencing major audio sync issues. The video is significantly ahead of the audio. It is much worse on HD channels, especially locals (and most especially our NBC channel) - but all HD channels seem to show it to some degree (and even some SD channels show it, especially when getting audio from the TV rather than receiver). I have the HR 20 unit running via HDMI to our Sony receiver, then running through HDMI to the Samsung 52B750 TV, and also running directly to the TV through component. Interestingly, the audio from the TV is slightly delayed from the audio from the receiver - when both audio are going it gives a neat echo effect. So the receiver sound is closer to in line with the video, but still behind. My receiver has a sync feature, but it only delays audio, so this won't help me. I love the HDTV, but this audio sync makes watching shows like watching a Bruce Lee action movie - mouths are moving completely independent of sound! Is there some sort of fix? We have a few unwatched (SD) shows on our old Directivo unit, and watching one of them the sync was fine. So it seems to be related to the new HD DVR.