Nice. I cant really compare to mine, but it looks like my size 12 is the same readability as your size 20.
TV out might be better for you anyway though, but I *think* you could mod it to s-video just as easly as vga, which would improve quality a bit. Mine doest seem to have nearly as noticable gridlines - I dont remember noticing them atall infact, but that might just be your camera.
How did you get tv on it? and do you have any problems with it when you play full screen opengl games?