110, 119, 129
I'd call it "full arc" not "western arc".
Based no what DISH is saying, they will expand such MPEG4-only deal to the whole nation. To do that I don't think they can rely on 110, 119 and 129 as there is no room to plug in a full MPEG4 service. They can save some BW on 110/116/129 but only spot beams, which will be no help.
Scott, do you have any idea what a "western arc" will be like in terms of orbital slots?