Hi droidy:
The forum recently dealt with similar issues from another gentleman that your TV report's show. He was from Moorpark, CA and was struggling with poor LOS & those pesky 2 edge difficulties because of his location in respect to MT Wilson towers; down in a valley with hill blockages.
You might want to read through his thread for recommendations that were suggested to him. Hopefully it will be helpful to you. Here's the thread:
http://forum.tvfool.com/showthread.php?t=16626
Best to you and let the forum know how it turns out.....