My father just got an HR21 and the popping or crackling noise through his TV speakers is driving him crazy. It makes the sound during FF, RR, and when changing channels. It only makes the popping through the hdmi connection. The digital out to the audio receiver does not make any unusual noise. He has software version 0X193. He previously had an H20 with no problems. I have three HR20s and have never experienced this problem. The HR21 is connected to a Sharp Aquos television, of which one other guy has reported the same issues. Is this a bad receiver or an incompatibility issue of the HR21 with the TV? Has anyone else had this problem?