As I have said here recently, I had HD installed last Friday and am still getting used to it. HOwever, the locals I get on the OTA sometimes go in and out. For example, I'll be watching a show and then it'll go blank, say "searching for signal" then pop back on, then go blank, say "searching for signal", then pop back on, etc. Sometimes this lasts 30 seconds, sometimes it lasts for the whole show. I am in the Detroit area and I can't even receive (at all) the signal for the local UPN station (50-1), not that I watch UPN. The installer mentioned that he could put a booster on, but, at the time, it seemed to work fine. Should I call DirecTV and request the booster? Is it possible that the booster could make the signal WORSE, or will it only improve the signal? I would how much of this is geographical (buildings in the way, too far from the signal, etc.)