Hi - I bought an 50 inch DLP Samsung and originally had it hooked up to a regular Mediacom cable box with S-video. Everything was great. I then had them switch out to an HDTV Cable box and used a Monster HDMI cable. Now, the HD stations look great, but the regular stations are very "fuzzy", not crisp at all and the picture is smaller with boxes on the sides of the screen. Help, do I really have to use S-Video and HDMI and switch my source each time I go from HD Channel to Regular Channel??? Thanks