It wouldn't be an additional dish.
If a particular market's HD Locals were moved to 61.5, then your "Dish 1000" would be replaced with a "Dish 1000.4" that points to 61.5, 72 and 77.
Those latter two slots won't be operational until probably some time this fall, and at that time, they will mirror all the 110/119 channels.
For those of us that are "eastern" and despise 129.. _can_ we switch to 61.5 today (and ditch 129) or are we better off waiting until all of the re-alignment happens?
I'm guessing/hoping (maybe wrongly) that I'd have a much better signal from 61.5 for my HD and thus much less rain/storm drop-outs.