I was a TiVo Series 2 customer for 4 years until 5 months ago when we purchased a HDTV. We switched over to Comcast DVR for 2 reasons: it was free (TiVo HD was $799 I think) and for the fact the DVR had 2 tuners so we could watch/record 2 channels at once. That feature was the best part of having the DVR over the Series 2. Well after 5 months EXCEPT for that feature, I hate the DVR. The worst problem is the loss of all stored memory when my central AC starts and the DVR has a momentary loss of power. Anyway, now that I see TiVo S3 HDTV is don to $299 I am tempetd to return to TiVo. The deciding factor is whether we can watch on channel while recording the other, like the Comcast DVR does. I don't want it if its like my old Series 2 where you have to use a splitter and only watch broadcast channels while recording. Should I come back to TiVo? Thanks for you input!