I just got upgraded to a Genie and I kept the existing HR24 and the two H25's. It's great. All receivers can see an integrated list of recorded shows and of what's recording. It also shows what HR they are on. But that's really transparent since you just choose what you want to see and it doesn't care what HR it's on. Another plus, is that I put the 34 in my daughter's room, since they do all kinds of recordings, and I put the 24 on the main TV where I had a 25. It's great to be able to rewind any show you are viewing at the time even if it's not being recorded. The two 25's are in bedrooms. Yes, definitely opt for your current receivers instead of the clients.