I can't see the sides of my screen when the lights are out if I'm watching 1.78, but it is a grey screen. Masking systems are fine if all you plan to do is use the HT for movie nights. But if you bounce around from TV, to movie and channels surf, I wouldn't bother with it much. I love the 2.35 experience, but you pay for it. The zoom / lens memory option seam like a PITA to me. I have yet to hear of a projector that gets it right. With an HE lens, it makes life pretty simple. Well, that is if you use an external VP anyway. My vote is for CIH, but only if you swing the VP and lens, which is pretty spendy.