Just to add some more confusion. I am currently running a THD with 9.2J and have seen some macroblocking and sound drop outs. My Hitachi HDTV also has a SA cable card. My THD has a SA MCard. Using split screen, I am able to put the THD on one screen and the TV cable card on the other. I am seeing the same macroblocking on both screens. Apparently my problems are the cable or cable card (Comcast). The signal strength is 98-100, so I'm suspecting the broadcast.