Purchasing a TiVo HD was one of the best things I have ever done. However, the latest cable technology implemented by the cable industry results in the owner of the TiVo being required to navigate a slew of poorly trained cable technicians and support reps. The only way for someone to own an HD TiVo and receive the channels they pay for is for that person to train themselves on cable technology and fully understand how it works so they in turn can train the technicians who are assigned to them. This section of my site is dedicated to supplying enough information on cable systems so you can speak somewhat intelligently about the technology and possibly own a TiVo or ideally, as you will read later, build and configure your own Home Theatre PC.