I currently have 10 tvs 6 are HD. Never more than 4 on at anytime. Currently I have 3 722's that feed them. 3 tvs to two 722's and 4 to one 722. Thinking of getting 2 hoppers. Question is how many joey's? Thinking 4 to 6? Right now I'm mirroring tv2 on several tvs just not sure I could do this as easy with hopper/Joey. Any thoughts??