I don't if anyone is aware of this or not but don't do a power button or power cord restart. It could cause you to lose all you dvr recordings. Let me explain. In my guide I lost my analog local channels and my program guide information for my ota hd channels. After running diagnostics and not finding a problem I powered down both of my 622's and restarted them. Upon restart, I received a message on screen that the hard drive had been corrupted on both 622's and that all my recordings were lost. I called Dish and was told that because I had placed an order for the new Pittsburgh HD channels the previous day that my analog channels and program information was stopped until a new dish is installed for Pittsburgh HD local channels on the 30th of December. Of course, it would have been nice if, yesterday, the service rep told me that he was shutting off my local channels and information for ota hd until a new dish was installed. The service rep explained that with the 622 receivers when you do a power cord or front panel reboot that most of the time your dvr programs will be lost. Another words, even if you have a minor power outage your programs may be lost. With the older models, (921, 942, 501) this was not a problem. I find this hard to believe. Has anyone run into this problem? According to the service rep, never do a reboot unless there is a problem that can't be resolved in any other way or you may lose all saved programming. I can't wait to hear the replies on this one.