Ok so i have 2 recievers. A single LNB RCA dish, and i use a phillips indoor outdoor mutli switch outside. Now i get some channels and when i switch the dish wire from one side to the other on the switch i get different channels. I think i need to upgrade to a dual line LNB if not what am i doing wrong. If i do need to upgrade, can i just buy a new dish and install it that has dual lines, or can i take my uncles piece where it has the dual line holes and put that on it wher emy single line is? thanks for any help me and my dad are going nuts trying to figure this out lo. We have to switch it back and forth to watch the jets lol