We had a new OTA channel added on February 25th (WBNG-DT2 channel 12.2 in ZIP 13850). Prior to this, my OTA channels were 12.1, 34.1, 40.1, 40.2, 46.1, 46.2 and 46.3, and all came in fine. Now they are 12.1, 12.2, 34.1, 40.1, etc. Since OTA channel 12.2 was added, I have been experiencing sporadic "Searching for signal 771" errors on OTA channel 34.1. The first time it happened was that night, and I checked my antenna signal meter thinking that 34.1 was having problems with their transmitter and expected to see a 0% reading, but to my surprise, I saw my normal 88% signal reading for 34.1. I then returned to live tv on 34.1 and the picture was coming in fine. I then realized that was the first time I tried to watch 34.1 since I added 12.2 to my guide earlier that day. Coincidence? Read on... I then discovered the same thing happened that night on the bedroom HR21-200: I added new OTA channel 12.2 to it's Custom 1 guide that Wednesday afternoon and that night 34.1 was giving 771 error. I then did a antenna signal meter, 34.1 shows there is signal, then exit to live tv and 34.1 was coming in fine. Again, this was the first time trying to watch 34.1 since 12.2 was added to its guide that afternoon. Thinking I solved the problem, I went to bed happy, only to find the 771 error was back in the morning for channel 34.1. So Thursday morning I reset the OTA settings on both my HR21s, and then reran the initial OTA setup. This again seemed to fix the problem for awhile, only to have the 771 error return on channel 34.1 later. I'm only getting this error on OTA channel 34.1. All my other OTA channels and all SAT channels are fine. I NEVER EVER had any errors with 34.1 before that new OTA channel 12.2 was added on Wednesday February 25th - the 771 error began happening on both my HR21 within a few hours of that OTA channel being added. The 771 error usually only happens if I'm tuned to a different channel and something starts recording on channel 34.1 with the background tuner. If I'm tuned to 34.1 and something starts to record on that channel, then it's fine. So far to try and fix this problem I've reset the OTA settings, reran the initial OTA setup, and restarted the HR21s and none of this has solved the problem. I highly doubt my HR21 OTA tuners are going bad as it would be extremely unlikely that both boxes went bad within hours of each other. I think adding a new OTA channel definitely caused something to go haywire somewhere, maybe in the database D* uses to provide OTA channels for the HR2x boxes? I just hope it can get fixed quickly as I don't want to have to babysit my HR21s every time something it's supposed to record on 34.1. Please note: Channel 34.1 is actually channel 4.1 but that station remaps it to 34.1. Has anyone else ever experienced something like this were the addition of an OTA channel causes reception problems with another OTA channel?