I have tried everything and I am convinced it is a D* broadcasting problem. Everytime I have watched college basketball this year on CBS in HD I get serious macroblocking on and off while the action is going up and down the court. I have had my dish replaced with the Slimline from the LNB-5, my H20 receiver replaced, and I just got a new HR20. Both the H20 and HR20 are having the same problems only on this channel during the basketball games. Is anyone else in Orlando experiencing this problem? I have not seen any threads at all with Orlando customers complaining of this issue. The optional OTA I have works just great with CBS HD.