I called Comcast the day after the King5 story-- and my install appointment is on this coming Tuesday, Nov 16th-we live in Magnolia.
I am am an active RePlay TV user- 2 boxes and using DVArchive and 4 PCs on my home network- I have archived over 800GB of shows. But, I recently upgraded my TV to a Panasonic 42" HDTV- and I am not able to time swap any HDTV content (RePlay, as TiVO, converts all signals to analog).
So I will probably double-record most HDTV content- once on a RePlay, and once on the Moto 6412 box. Therefore, if I run out of space to view a show on the 6412 in HiDef and it gets over-written by a newer show, I will still have it available on a RePlay.