Do you have any server based DVR services? (Comcast On-Demand) I'm guessing you don't, I almost never use those services because there is nothing worth watching.
We do have access to On Demand programming and we never use it. There's no need. We have TiVos full of programming we do want to watch (and are constantly behind on).
Beauty is truth; truth beauty - that is all ye need to know on earth...except TCP/IP.