I'm looking at picking up the new HD Tivos and I'm worried about this switch technology that the cable operators are moving to. I saw on the Tivo site tha they are working on a solution for this, but I assume there will be some lag between when the cable operators move to it and when the adapter is available. Does anyone know when this switching technology will be used (preferably if anyone has any info on the Seatle Comcast area)? I did do a search on switch but it's just too common of a term here in the forums to get a good set of results back, so I apologize if this has been rehashed already.