Ok, both of my HR21-200 units are flaking out of late. Both of these are tied to two different 50" plasma televisions, and each of these televisions also have a Blu-ray player. When something starts acting funny, I have the convenience of a 23" Samsung flat panel TV that I can tote around for testing. The HR21-200 in the Living room will occasionally draw out a green horizontal line across the top of the screen within a fraction of a second, and then the entire screen goes black and no audio or video is observed. Connectivity is HDMI and I've observed this condition when replacing cables and using different inputs on the plasma. During an event I can unplug from the plasma and into the 23" tote-along and problem continues to be observed. I've changed out cables and this problem isn't observed with the Blu-ray player on all tested inputs. I assume it is the HR21-200. If I turn it off and let it sit for an hour it works again, but the amount of time to the next event cannot be predicted and I cannot reproduce the issue at will. The HR21-200 in the basement will occasionally go black on the screen, but the audio will continue to play. Likewise, I've swapped out cables and used different inputs on that 50" plasma, and can swap-in the 23" tote-along Samsung TV and continue to observe the issue. I can simply turn off and back on the DVR and the problem resolves itself. Additionally, the basement HR21-200 is now recording nothing. I setup Thursday evening to record Conan at 11PM EST and Jay Leno ~11:30PM and this meant the two would overlap. Additionally, I setup for a 6AM recording of a movie on another channel (either HDnet Movies or MGM HD). All three showed up in the recorded shows screen, all show they recorded for the length anticipated, but when I tried to watch them my observation is a blank screen and no audio ... for about 1-2 seconds and then the pop-up appears prompting me to decide as to Delete or Do Not Delete. In all instances, I chose not to delete and tried to replay with the same condition. Strange is that at 8PM on the same evening something recorded successfully, and again at 3PM the next day. And while these hollow-recordings took place the same shows successfully recorded on the HR21-200 in the Living room. Checking signal strength provides for mixed results. I have a D* provided 4x8 multiswitch, and it is powered. I am not sure which satellites are responsible for which shows (Conan on TNT, Jay on NBC, the movie on either HDnet Movies or MGM HD, and the successful recordings on CBS and the Military channel. Going to one satellite to the other and denoting the transponders that are valued (i.e. not N/A) I see a lot of them in the high 80's to 100, and some that are in the 18-36 range. I also see some at 0. But if some transponders are not used (not transmitting) I am not sure if that is reported as N/A or 0. There are way too many satellites X transponders X tuners to be able to conclude it might be the multiswitch, but I figured I'd give some aspiring tech person a go at this. These HR21-200 units are about 3 years old, but I am not sure the grief I'd have to go through to get D* to replace them. I do have the Protection Plan. Thoughts, suggestions?