I had my first bigscreen, high-def, televised sports experience yesterday for the superbowl. Even I noticed the squares (macroblocking?) during the high speed action (which was most noticable when the broadcast included image/logo "flyovers") . I didn't know if this was a problem with the broadcast, the receiver, or the TV.
Did others notice this too? If so, it seems the networks need to recognize the limitations of the media and try to not overstep those boundaries.