Network Dvd Changer On My Way To My Mcse 2003! How To Change Back From DVD To Dish Network?

How to change back from DVD to Dish Network? - network dvd changer on my way to my mcse 2003!

My brother is a new technology. He just called and said he was watching a DVD, and I wanted him and could see Dish Network does not find a way to recover. Does anyone know? It is in Oklahoma and do not even know what to press the TV channel or combination of keys to get the dish even go again ... Please help!