I currently have no TV service. I do have RG6 from the crawl space in my home to the main TV room. I would like to add service to this, and also be able to add TVs in two other rooms which have CAT5 wiring, but no RG6. Does any sat TV provider use RG6 to get from the dish to one TV, and then ethernet to get to the other TVs? I have been trying to understand "whole house DVRs" and "hopper / Joeys" but I don't see much real information on the web sites, and I know from experience that calling the sales folks will result in "oh yeah, we do that". Can I stream from a sat TV box/DVR/whatever to a PS3 or a Sony Blu-Ray? How about a Roku? Thanks for your help.