RCA rear proj TV help needed

[FStop]

Yeah, should be a button around somewhere to change the format of the screen. I've got a big Magnavox rear projection, and there's a button for mine.

On another topic, if you want to bring out the clarity of the picture, if the set is a few years old, polish the lenses and the reflector mirror. I about nearly tore mine apart, but the picture's a whole lot better. Convergence is shit at lower resolutions....but anyways, should be a button on the remote or a setting in the internal menu on the set itself.