Happy hopping,
If you have just one dish on your roof and it is a Dish 500 you are NOT receiving programming from the correct satellite dish. You need to get upgraded to the proper Western Arc or Eastern Arc dish. The Dish 500 only gets the 119 and 110 orbital locations and neither of those carry the HD programming. Call Dish and tell them you need to upgrade your dish to get HD programming.
If you have just one dish on your roof and it is a Dish 500 you are NOT receiving programming from the correct satellite dish. You need to get upgraded to the proper Western Arc or Eastern Arc dish. The Dish 500 only gets the 119 and 110 orbital locations and neither of those carry the HD programming. Call Dish and tell them you need to upgrade your dish to get HD programming.