The software is widely considered superior to Tivo - if only it was taken up by more OEM's (Replay licence, they don't manufacture). Oh, look at this:

"MOUNTAIN VIEW, Calif. - May 1, 2001 - In a move that will rapidly accelerate consumer adoption of personal TV in the cable industry, ReplayTV®Inc., a leading provider of personal television and digital video recording (DVR) technologies, today announced it has signed a long-term licensing agreement with Motorola's Broadband Communications Sector. In the agreement, Motorola (NYSE: MOT) names ReplayTV a primary provider of core DVR software for the creation of Motorola's new personal television platform. ReplayTV's DVR technology will be integrated into Motorola's digital cable set-tops, with plans to be initially offered in Q4 of this year."