I've been having an issue and no one can seem to figure out what the issue is. I own a 622 in a bedroom and 722 in my living room. I have absolutely no issues with the 722 at any time. However, I've been having issues with signal loss from the 622. This always happens at night when I am about to go to bed and turn on the tv. When I turn it on, whatever channel it was last left on is fine, but as soon as I change the channel, I get the 'Acquiring Signal' screen. If I wait, the channel usually but not always comes back in but it takes a few minutes. A reboot of the box always fixes the issue. This has become a little annoying, especially when it affects my DVR recordings b/c it thought it didn't have a signal. I leave the box on all the time. I used to have it go to sleep after x hours of inactivity but I thought that was the cause and turned that off, but it still occurs. Any help would be greatly appreciated.