I'm just wondering (after searching and not finding any definitive solutions) if anyone has any suggestions to try and rectify audio stuttering on OTA HD feeds through an AM21? I have had two different AM21's hooked up to my HR22 and both have the trouble. I have NO trouble on HD channels on the DTV signal, just the OTA feeds. I have anywhere between 80%-100% signal on every local channel and have zero trouble on any of the digital tuners I have in my other TV's or converter boxes. So I know it's the DTV setup I have in place. I've read that others have found the same trouble on their systems, and just wondered if anyone has any more ideas? I've tried a different USB cable, moving the AM21 to help maybe keep it cooler, unplugging the AM21 while on and nothing has worked. I still get stuttering. Customer service is no help and wouldn't even send me a replacement AM21 to try until I had a tech come out and we both dealt with 10 different reps to finally go to retention and have to threaten to disconnect service. All of that even though my AM21 is 7 days old, and I have the protection plan. So now I'm stuck and frustrated! :bang Thanks for any ideas!!