My Setup: Tivo S3 and Samsung 720P 16:9 My HD channels resolution comes in 1080i and sometimes 720P, and I notice that on all of the 720P channels the screen is cut off at the sides and even sometimes on the top and bottom. However the 1080i channels fill the entire screen. I've tried numerous combination of settings on the S3 to try to get the 720P channels to fill the entire screen but have not been able to thus far. Is their maybe a setting on my TV that I have yet to figure out that would accomplish this. I've had my TV for less than a week and has so many different settings that hopefully someone here can point me into the right direction. Thanks.