I already have: quad LNB and wiring to 4 different places in the house RG6 coax. I want to change to 322 and get done paying for 3 extra receivers. I also have regular coax wire run that was used for regular antenna. Here's my question: do I need to run 2 coax from LNB to the 322 and then 1 coax back out to TV2? If so, can I use existing coax that I used for old antenna feed for TV2? And then can I split this with the splitter that came with the 322? Will my smart card from my old single receiver work with the 322? It did not come with one. Also, can I add 2nd 322 receiver?