I have had the HR20 only since Saturday. To troubleshoot another issue, I power cycled the DVR this morning. After restarting and going through all of its testing, the HR20 resumed normal operations. However, I could only tune to the following HD channels - ESPN2-HD, TNT-HD, Discovery-HD, HDNet, and FOX East HD. ESPN-HD, UHD, and HDNet Movies were no where to be found. If I did channel up from ESPN2-HD, it went straight to TNT-HD. If I manually entered 74, the HR20 would say channel not available. None of the missing channels showed up in the guide either. After a few minutes, ESPN-HD returned. Followed by UHD. Then after about 3 more minutes HDNet Movies returned. Has anyone else seen this type of behavior? (I immediatley checked my HD-Tivo - hooked up to the same 5-LNB dish - and verified that it was able to tune to the channels above that were missing on the HR20. I have signal strength between 95-100 on all transponders available in my area on each satellite). Thanks.