OK, make up your mind, are we talking about just the NFLHD channel, which is the subject of this thread or all the new MPEG4 channels, which then needs to have the title changed. In the link you provided there is not one single reference to a PQ problem with the NFL HD channel. There are references to the NFL-ST HD channels, which are still MPEG2.
Some of the post in your reference thread has people saying they've noticed issues while others say they haven't. CPanther95 mentions the Food channel, he's seeing it get worst. Then you have one that says Food has been bad since launch and another saying it's rock solid. That's the problem with measuring PQ, unless you have something probable/reproducable that others can see it's all an opinion.
Anyway, back to the NFL HD channel, which was your original rant, looks like you are the ONLY person that's responded on this thread that channel 212 HD last night looked bad, so the majorites opinion is that there is no problem last night.