My HR21 has twice frozen and I wonder why the firmware is so bad? It might be hardware, but I doubt it. An example is today I turned on my tv and it was on CNN HD. I could not do anything with the DVR. No buttons on the remote nor the DVR itself worked. I was still getting good pic and sound though from CNNHD. Hitting power didn't even shut off the DVR. Menu would not bring up the menu etc. TV picture and sound were normal. I had to hit the red reset button in the front right of the DVR. Things work again. Now also yesterday CNNHD the pic and sound went weird several times. Sound would be all jerky for a few seconds while the picture went all messed up for a few seconds. This went on a few times over 30 minutes or so. Even rewind or fast forward did not help. So I wonder if the feed was that way or the DVR did it. Sound from fresh prince of bel air the first night i had it, Wednesday was messed up with a little high pitched sound when you heard them talk with using the letter s or similar type sounds. However it happened on other words too sometimes. I did not change the channel to see if it was on others except a commercial on a diff channel to me did not seem to do it. However i only had it on that channel/commercial less then 10 seconds. Then I put it back to fresh prince on nick1. I think this was the nick HD channel. So I don't know what this issue is from. So far since I have not heard the problem. The problems really are the 1 or 2 times it froze and then the CNNHD audio/video issues for the few minutes here and there thursday night. i was watching anderson 360 at 9pm something. Mine is recording bagger vance on tnthd and it is frozen. i was able to watch it for a couple seconds. then tried hitting guide etc and nothing happens. then my tv shut off cus of no signal. **** DTV.