I've had an ongoing problem with picture quality and last time I called I was routed to call management. The guy that was sent did everything I can imagine, moved the dish (too the roof from the side), recabled everything, changed multiswitches etc. Of course after he left things got considerably worse. So basically on 3 HD receivers (in the same room), I get frequent, though not always, searching for satellite errors, and also many times I get unwatchable pictures on the HD channels due to extreme pixelization and freezing. This happens on live TV and recorded shows, some boxes more than others. Since the problem only occur intermittently, what should I ask the tech to do ???