While working with some test firmware, I had some instances keep/delete "recordings". The NR didn't seem to give me these last weekend. In my case, OTA always recorded, but only one SAT tuner would and the other always gave the keep/delete. This tuner also had problems with live buffer, where if I skipped back into it everything would freeze until a channel change to dump the buffer. Using double play, I was able to quickly check/test the tuners and their live buffer. If the buffer was hosed, so would be a recording off that tuner. Since this was a SAT tuner, I needed to get it working so at first the work a round was to reset the OTA settings [disable the AM-21] which got both SAT tuners working again. I repeated this several times. With AM-21 activated both OTA tuners worked fine, but only one SAT did. Disable OTA and both SAT tuners worked fine. I tried another version of test firmware and basically had the same thing, but couldn't get both SAT tuners working by disabling the AM-21 through the menu. Since two SAT tuners was more important than the AM-21, I moved back to the NR and had all four tuners function. Then I read posts about others that weren't having this problem, and being a sucker for abuse, I downloaded the test firmware again. Again it had one bad SAT tuner and three good tuners. No matter what I seemed to do/try, this always seemed to be the case. Then I pulled the USB cable. Both SAT tuners worked!!!! Then I pulled the USB cable back in, checked the SAT tuners before setting up the AM-21, and the tuners still worked. Next I setup the AM-21, and to my surprise, all four tuners worked. In a bug free world, this doesn't make sense, so there is a bug, but this was with test firmware and "for me" the NR didn't do this. I wonder how close your problems are to this and if any of the steps I went through would affect yours?