Just upgraded to a DISH 1000, VIP 722 system with dual TVs connected (one HDTV). I've also got a 301 on another TV. I was able to split SD TV 2 into a few mirrors for SD TVs that won't need separate tuners. Can I also split TV 1 into some SD mirrors? I've tried a few different splitting combinations and haven't had much luck yet (see attachment--apologies for the scribbling). What I'd like to do is mirror TV 1 into the SD TV that is currently hooked up to the 301 (and perhaps other TVs), and move that 301 box to another TV in a different location. Currently, I've got everything running through existing cable wired through the house, and I'd like to keep it that way (so the option of running component cables from the 722 directly to TV3 is a last resort). Any thoughts?