robincarloc,
You can have as many Premium channels as you'd like, however purchasing a Premium channel plan ($350/month) will move only one channel of your choosing to the Premium plan. If you need more information, I would suggest getting in touch with one of our Premium Sales representatives, who will be able to thoroughly answer all of your Premium plan related questions. They can be reached at US (Toll Free): 1 (877) 977-8732, or by filling out
this form.