Did you move far enough to be in another service area? Availible channels vary by location of the service area.
Did you check your service in the new location, to make sure you are billed for the same level as before? Make sure a "special rate" was not removed because of the move.
I've asked a Comcast employee to help you. You should expect a reply in this thread.
I'd like to review your account to see if I'm able to get this fixed for you. Could you please verify your first and last name, full street address, and the phone number or account number associated with your services in a private message?
To send a private message click on my name "ComcastChe", then click private message me.