I've just gotten off the phone with DirecTV. Again. I spoke to three "technicians" who, while polite, apparently lack sufficient technical knowledge to change a light bulb. Perhaps someone here can answer these two questions (please????): 1. Last Sunday (after two visits from an installer), I started losing high-def channels on my HR20-700. Specifically, I lost SmithsonianHD, National GeographicHD and HDDiscovery Theater (later in the week, I started getting periodic pixelation and black screens on my local HDs and on HBOHD). I checked the signal and transponder strength and found that 103b transponders were in the 20s through 40s, and 99b varied between 12 and 66. Overall signal strength was 60% for 103b and 11% for 99b. I called DTV and they sent out a pair technicians who showed up 2-1/2 hours late for their 8-12 window. They realigned the dish, rebooted the box, and said everything was now fine. They also said that the problems I had been experiencing were due to the box being set to "native on," I should set it to off and manually change the format whenever I change channels. They said that it was my TV (!!!!) that was causing the problem. This set off my BS meter, so I checked the signal and transponder strengths. 103b was looking pretty good, but 99b is now at 7%, with individual transponder varying between 20 and 40 (not counting 0 transponders which I understand to be normal). Are these transponder and signal strengths correct for 99b? None of the 3 "technicians" I spoke with at DTV had the slightest idea whether these numbers were correct or not. 2. Back to installer BS. In my conversations with the 3 "techs," I asked them why native had to be set to off. Two of them simply parroted, "That's the setting that DirecTV recommends" over and over again. The third told me it was due to "incompatibility issues" with TVs. I said my TV is not incompatible with anything -- of all my HD signal sources, only the DTV box has trouble. He finally admitted that was all the information he had. So what's the deal with "native"? Is this a design issue? Bad firmware? Defective box? The fact that I have to turn to this (excellent) resource to get a straight answer is a sad commentary on DTV.