Thanks man, even though I thought that I already had the dish peaked, moving it slightly west worked. I had peaked the dish using 12145 H and 12180 V , and they were as good as I could get. Apparently, the 12104 tp on 123W was interfering with 12104 on 125W, and when I moved it a bit further west I could get 12104 on 125W. The Q is roughly 30 which is my min., but the picture is stable on Montana PBS, and even though this move to the west cost me a bit of Q on 12180, I still have very stable pictures there as well.
Thanks again, I might have eventually stumbled on this myself because I don't like go give up on something that presents a challenge, but your help gave the process a big boost and saved me from a great deal of frustration.
Now it's back to my BUD to see if I can get GPB on the 4dtv again.