Comcast had my OMP (One Moment Please) appointment scheduled for Sunday, even though I asked for and we agreed on Saturday afternoon originally. Tech came and tried some things. He decided to swap out the box for a new one to see if it would fix it. New one is a DCT-6200, manufactured 02/2004. It was taking too long to download the microcode, so he took off for his next call and said he would check back on the status of the problem.
I'm still getting OMP on those new channels, but at least I got a DVI and firewire output now.
If anyone is getting OMP on those channels, I suggest you call it in so they know there is a problem. I think they are just starting to realize that there is something going on with these new channels in some areas, but not in others. The tech said he checked at the headend in Burien, and it is working there, but it isn't working in Auburn or at my house for some reason.