Yes, DVR supposedly by year-end. The question I have, though, is about the interface to the DVR. It would be great if it had all the features of Tivo or ReplayTV (i.e. not just pausing live TV and VCR-style recording, but also recording all episodes of a favorite show and saving only the last X number, or recording all programs containing a particular actor or about a particular subject). These are the features that really make ReplayTV and Tivo shine. It's not clear, at least to me, that the Comcast DVR will have any of these.
There is a huge Comcast DVR thread elsewhere on this forum, and I assume somewhere in the thousands of posts there is an answer to this, but I haven't been through it yet to see.