I have both the Pioneer 4340HD and 6020FD plasma displays. With the same antenna signal, I can get 15 HD channels on my 4340HD but can only get 8 channels on the 6020FD. Some of the channels that are missing on the 6020FD have 90% signal strength on the 4340HD so they are definitely not weak. I have upgraded the FW on the 6020FD to the latest version (May09) and this still did not help. I have cold booted (unplugged power cord for hours) several times and tried to rescan but still no success. I've even tried to delete existing channels and rescanned. It seems the 6020FD just doesn't see these channels. The TV's signal meter shows zero for anything but the 8 channels it's able to see.
Does anyone else have this problem? Any solutions? Thank you for any insight.