i have played around a little with the service menu but had no luck.
my main problem is some 4:3 images look more like a 3.75:3 image.
the picture is too narrow in 4:3 mode. i would like to find a setting to let me stretch the image a tad more
this happens when using the vga adapter with my dreamcast.
it also happens when playing 4:3 native xbox 1 games on a xbox 360 set to 720p or higher.(4:3 xbox 1 games are forced to be letter boxed on the left and right on 360 when in 720P or higher).