If anyone was having trouble getting Montana PBS, you should have no trouble whatsoever getting it now. Obviously, they have boosted power substantially (at the moment, and has been steady since I scanned it in earlier today). Hopefully, the signal doesn't drop again.
Here is the interesting part, I moved my 80cm dish that I had on 125 recently to 99 to try and get the new PBS mux (and was a failure, as expected, hopefully, after they shut off 125, they will boost power). I also had an LNB for Reuters at 129 on the same dish, so moved a 60e dish I had to 125/129, and found I also could also get the PBS mux as well at 70% on the AZBox (fairly good quality level).
Anyhow, this morning Montana PBS also showed up on that 60e (at around 48-50) which is good enough (no pixelation, etc.). So anyone with a larger dish than a 60e should have no problems at all!
Enjoy (while it lasts at these good signal levels)!