I am considering a switch to the 211 HD from the 811 HD, in part because all 4 of my 811's so far have sucked, and to add more Hd channels, like NFL HD. I currently have the superdish, do I need to add another dish? Can it be wired in to the multiswitch on back of the 811/ therefore, is install easy eneough to do myself? I did my own first install 8 years ago, had installer do superdish install. Anything relevant i need to know? hope to have by next Saturday for Dallas / Carolina game (Go Panthers) if it helps, my zip is 54911.