Gazillion new channels on comcast boca/delray florida

Maybe it happened earlier and I only noticed last night, but I see a gazillion new channels all above 1000 here in Boca/Delray Florida with comcast. They appear to be all the same channels, but with new numbers, and the old channels are still there. Looking at the TODO list is kind of weird. Some programs are scheduled to record on the new channel, some on the old channel.

Is this step one in comcast going to H264 encoding or something? I wonder how long the old channels will hang around?

Gazillion new channels on comcast boca/delray florida