You had mentioned going into the Sony Service menu and stretching the video to fill the entire screen. Do you mean the Sony remote menu or actually accessing some type of services I that allows you to manipulate the size of the picture. Just curious?
Actually (follow you ), you are not allowed to change anything in Service Settings.
Drop the idea, as my intention was before all tidbits came - to change overscan, but it has small room to changes, usually 10% max and will not get desired 16:9 to 4:3 crop.