Yea, I have several TiVos (one with cable cards) and am aware of their products. There are cable companies out there (Charter, Comcast, etc.) that have their own converter boxes with an integrated TiVo user interface & software. They can then offer On-Demand & PPV, but they are limited in other popular features (No Netflix or Hulu) like regular consumer TiVos have.
I was hoping there are still plans for true2way technology to be used in a consumer based DVR of some kind (& not in a cable company owned DVR)