MNF's high def opening that wasn't?

 
Monday Night Football was supposed to kick off
with a high definition promo for Chicken Little, but at least here in Michigan viewing the game on Comcast, it wasn't, and neither was anything else for the first 8 minutes or so broadcast.

I didn't experience the audio problems that some had, but it was all SD to start out with, did anybody get the high definition Dolby 5.1 experience we expected?

Update: Apparently some of the stations opted to switch customers to the SD feed with sound as opposed to the high definition feed with no sound because of the technical problems.