What Dish Network should do is take over 148, 157, and 166 and offer a "Western" Arc service. So what we would have is...
Eastern Arc
61.5, 72, 77
Southern Arc
119, 110, 129
Western Arc
148, 157, 166
Basically they do the same thing they did on Eastern Arc, but for the West Coast which would help them be able to spot beam locals for the entire country and open up more locations for line of site.
Dish did bid on and win the 157 slot, but Dish just let the time elapse for meeting the FCC's milestones. So, Dish apparently decided on a plan that, in the end, did not include 157. I believe 157 currently has no takers, unless I missed something.
IMHO, Dish's ultimate plan is probably using only the slots and licenses it owns, both DBS and, perhaps, other bands, using the most efficient encoding and modulation available and practicable. This would be a great cost savings in the long run, but it takes time to get all the sats and boxes in place.
However, IMHO, I really do believe that we are in for a MAJOR revolution in how we all get our TV in about 5+ years. Once the internet speed issues are dealt with, and this administration is extremely serious about this, and the FCC will finally tackle this issue, and the new gateway initiative that will standardize all delivery to homes via cable, sat, whatever so all set-top-boxes will be compatable, the days of watching and recording and receiving TV in the current linear channel model will be over.
It will be the internet, for the most part, with all of use paying separate subscriptions for the "channels" we watch today such as ESPN, USA, and even services similar to Hulu: that is the answer of how all this currently free internet content will finally be something the big media corps. can finally charge money for and make money with and settles the "A la Carte" issue for those who don't like paying for 220 channels they don't watch. Of course, this just enhances popular services such as Netflix.
Dish and DirecTV, forced by market conditions, could end up using their satellite capacity to supplement internet delivery of the content, almost exclusively, especially where some homes don't have the on-line speeds. A hybrid broadband sat service used mostly for DOWNLOADS, not linear TV, but the same experience as accessing TV on-line with things such as Boxee and other gateway boxes designed for TV and movies via internet. I could be wrong, but things will change drastically sooner than we think.