First off, hello old friends. I've been out of the loop for some time now so be easy on me. Been with DirecTV since 2006. I'm starting to take a serious look at adding to my install of mainly HR20's, 21's and 22's (probably replace one) with one of these Genie's. Will a Genie play nicely in a world of all older HR series DVRs or am I opening a can of worms? Will I be able to watch items recorded on the Genie from my other HR DVR's on my network like I can today with the "Whole Home" service? Thanks for any and all advice.