wondering if this is possible...I have a dish reciever here at my house that has the 2 white attachment arm, (the dish reciever is not in use here), my parents have a dish reciever at another location which is missing that piece, if we take mine of my reciever at put it at another location and use an activated reciever box, will we be able to get channels? Is there anything special we need to do to make this work?