I didn’t really mean to make the topic of downloadable TV, or TV On-Demand, a theme for the week, but after reading a few announcements today I felt a few words were in order. Today CBS and NBC made two big announcements today regarding providing content from their network in an On-Demand model. This of course comes on the heals of the ABC deal with iTunes, but it differs from that arrangement pretty significantly. Instead of just jumping on the bandwagon and signing up with iTunes, CBS and NBC are both using a model of using a Digital Video Recorder (DVR) to receive their programming. So instead of using your computer, you use a DVR directly connected to your television.