I got a general question about how the HR34 whole home setup works. I currently have an HR-20 and an HR-21 DVR, along with an SD R15/500. My HR-20 is starting to go out on me and was looking at the HR34, mainly because of the 5 separate recording feature. My question is, will the HR34 co-exist with my other DVR's or will the whole home feature screw things up. I don't really care about the whole home feature (at least for now) and don't want to order this receiver and screw up my setup.