I currently am past my 2 year commitment so I am considering an upgrade. Currently have old dish with 4 wire output.. No swm in system. Have a HR 21 3 H20's and 2 AR 21 for local Dish Distributed by zinwell 6 x 8 All fed by 2 coax to each unit for Dish and 3rd for OTA. Home network is wireless/n. H21 is connected through game adaptor to download guide . Only one that is capable of Networking. Looking to upgrade recording capabilities and to multi room viewing Tv's are all Sony LED but at least 6 years old. Suggested approach and configurations welcome..