I have an HR44 in my living room, and an owned HR24 in the bedroom. I just upgraded to a 4K tv. I'm having some macro blocking issues, that may or may not be the fault of the Genie. Still trying to diagnose, via process of elimination. However....in talking to someone on AVS Forums, who also has Directv...he asked me if it could be the box, and which model did I have, as he an had an HR34 that gave him macro blocking on recorded content only. Weird, but it did. He replaced it with an HR54. So....even though I can't necessarily blame the HR44, I'm thinking it may not hurt to get the lasted one, and I am looking at an owned one on Ebay, and what I'd really like, if I buy it, is to put the HR44 in the bedroom, as it has a bunch of recorded stuff that I'd rather not just lose, and it's so muchh faster than the HR24, and then the HR54 would go in the living room. But, I seem to remember something about them not allowing two Genies, for some weird reason. Also....I just have an SL3 lnb.....does that need to be changed with an HR54? And has anyone noticed any difference in picture quality with an HR54, or know if it has a better video processor?? Thanks, in advance!