So here's a word one. Tuesday night, I was up watching Letterman on our local CBS affiliate that I pull in through the OTA tuner on the HR20...everything is fine. I had last season's finale of CSI: NY set to record Wednesday night and Survivor premier last night. When I went to watch them, I had nothing but a blank screen. And, I checked this morning on the HR20 and channel 7-1 was black, with no sound (and there wasn't a searching for signal message) either. So, I decided to try the ATSC tuner in my set and channel 7-1 comes in crystal clear. Oddly enough, we have a 24 hour weather station on channel 7-2 and that comes in just fine through the HR20. I also pull all the other locals just fine as well. Has anyone seen anything like this or have any tips?