While it's less hardware at the home I would think their network design will take even more effort now, providing the bandwidth for these DVR sessions. If a home is watching two programs recorded on the headend servers then they cableco needs to provide the path for that data from the server to the home, just like OnDemand viewing. When I had Comcast there were times where I couldn't view a program because all the video channels available on our node were busy with other viewers, if the cableco's don't insure that folks never see a 'busy signal' this might not be that big of an advantage for them.