I currently have 3 series 2 receivers and I'm planning on upgrading one of them (living room) to a high definition receiver. I also have the standard dish on my roof and I'd like to replace it first before I upgrade my receiver to HD (and purchase a HD TV). So, here are my questions... 1) Can I replace my current dish with a HD dish and am I assuming correctly that my current receivers will work fine with the new dish? 2) Recommendations for a HD receiver that has multi-room viewing capability (similar to my zippered series 2 receivers), is there something out there that I can mod for this? 3) regarding a HD dish upgrade, do the HD dishes have better signal reception, or is one better than another in this area? Thanks for any suggestions or ideas. My plan is to upgrade the dish first and while I'm researching a HD TV, I can look at purchasing a HD receiver in the meantime.