http://www.techwench.com/understanding-how-tivo-based-dvr-works/
To better understand how Tivo based DVR works we need to define Tivo first. Tivo is a company that offers branded subscriptions for interactive television. As a viewer you get to choose which television shows you want to watch and when. To avail of this service you need to buy the digital video receiver and a subscription. Both the receiver and the service work with cable TV, digital cable, rooftop antennae and satellite broadcasts. The receiver has to be hooked up to the television and the cable box or the satellite receiver or antennae, depending on what you use.
