Things got a little nuts on the HD channel from about 11:50 PM - Midnight CT. At 11:50, the screen started flickering black at regular intervals for about two minutes before finally letting up. Then, around 11:55, thin little "static" lines started jumping up the screen. Then when it came time for the 11:58 LF, the screen was black for about the first 30 seconds, then the LF flickered on, went away for another 30 seconds, and finally stayed on for the final minute of the LF. I'm surprised they didn't switch to the emergency feed amidst all of that. It seems like no one monitors the HD feed during the overnight hours.