I currently have several R10 Tivos we use at various locations. At the main tv we upgraded to the new Directv HR20 last year. I used the new unit for about a day before I hooked the R10 back up to run beside it. I use the R10 99% of the time and only switch to the HR20 reciever if I want HD like for sunday football games. With all these new HD channels coming out I'm thinking of picking up a HR10-250 so I could get at least some HD channels without switching to the other reciever. It would also be nice to get the extra recording time. Will this work, or are ALL the new HD channels this new format the the HR 10-250 wont pick up?????? Would it simply function like my old R10 but with more recording time or would it not function at all??? I'm hoping some of you that are using the HR10-250s can inform me on this, Thanks.