I just got the HD-DVR box from Comcast. It's really kewl. You can record anything or 2 things at once, and it stores up to 60 hours.
All for an extra$9.98 a month. The HD box without the DVR was $5.00 extra so it's really only an extra 5 bucks.
MY suggestion, don't wait till Christmas, do it NOW.
I bought was recently
Had have yet to figure out how to use the dang thing *L*