I hope this is the right place to post this question / plea-for-help. If not, please move it where it belongs. We have an HR21-700 with an AM21 for OTA. It has worked perfectly fine for several months. We have the AM21 primarily so my wife can record 18-2 (KSCI in the L.A. area) for the Japanese programming. A couple days ago, well after the digital switch, she started complaining that her shows were "all messed up". When I finally checked it today I found that there was no signal on several channels, about 50% on some and 100% on others. Nearly all of these had previously been at or close to 100%. I did a complete reset including the OTA antenna part and had it redo the initial setup. When it got done I thought it had fixed it because the first channel I checked was 2-1 and it showed 100% signal strength where before it had no signal at all. Then I checked the rest of the channels only to find not much had changed other than channel 2-1. There could have been other changes but I didn't write everything down before the big reset so who knows. I was really focusing on 18-2 and just noticed 2-1 because it's the first in the list. The only things I know for sure is that just about every channel used to be at or near 100% and now most aren't and before the reset 2-1 was 0% and now it's 100%. 2-1 has a sister station, 9-1 (KCAL), and it has always followed 2-1 signal-strength-wise and both before and after the reset 9-1 has had 0% signal. Has the AM21 bit the dust? Is it the HR21-700? It wouldn't make sense to me to blame the antenna, cables, etc.