Help! We moved into a house that has a 64" Mitsubishi tv (not a flat screen, but HD capable, about 4 ft deep - is this a rear projection?). It is lodged shuggly into the wall, so scooting it out to read the model nuber is not something I want to do, but if I have to I will. Problem is that we seem to be locked out of many tv functions on the menu - like truning "on" another input (all but the two we have for the satellite box and dvd player are marked "off" and we want to add the VCR. Also cannot touch any of the video/audio controls. The symbol on the menu is in the "lock" position, and I can only assume that the refusal of the enter button or any other to access these controls is because of the lock. It asks for a 4 digit code in the V-Chip menu option, which we do not have. Is there a default secret code that will work, or how can I get this from Mitsubishi?