This is cool news, Tivo as an OEM software provider:

In selected areas of New England, TV fans can now choose between a stand-alone TiVo® HD DVR with a cableCARD™ and a Comcast DVR with TiVo® Service.

The Comcast DVR with TiVo Service is delivered as a software download to a Comcast DVR and offers access to TiVo's award-winning interface and Comcast's On Demand content. The TiVo Service also provides exclusive features, including TiVo WishList® searches, TiVo Suggestions, and Season Pass® recordings and an easy way to find your favorite shows on TV or On Demand.

The key phrase being "TiVo Service is delivered as a software download."