Perhaps the broadcast just had less compression than usual. HD can be made to look pretty unpleasant by the cable TV providers. If you recorded it, you can check the bitrate using KMTTG; otherwise, you can do some math based on the reported file size and duration.
p.s. math on my recording's info seems to indicate around 3.9 Mbps (and I'm assuming MP4; 4h54m & 8.37GB)
p.s. math on my recording's info seems to indicate around 3.9 Mbps (and I'm assuming MP4; 4h54m & 8.37GB)