Could somebody please explain or point me to a link that explains SWM. I currently have a slimline 5 dish with 4 cables coming into my house. I don't know what kind of switch the installer put under my house but I have 2 cables running to each HR22. What do I need to upgrade to HR24's with MRV? I don't want bbc's or anything else hanging off the back of these receivers. Evidently I need a SWM system but I don't have a clue what that consists of, different dish, wiring, switches, etc. Any guidance for a technical newbie would be greatly appreciated.