I know my AVIA calibration disc has test patterns for setting overscan - I'm just not sure how to use them. Would someone be so kind as to offer a brief explanation? And, is it possible to set overscan for 16:9 when using the squeeze trick on a 4:3 TV? I know I can set it for left and right, but what about top and bottom? Seems like you wouldn't be able to, because of the black bars ... Any advice would be most appreciated!