I have a bat wing on the roof, with a boost inside the coach. It kinda works, but not all that great. Also have a satellite on the roof that does nothing & nobody around here knows anything about it...
I have a 2008 Monaco with the factory set up. When I put my batwing up in a new area that is somewhat remote, I have to go into the menu option of the tv and ask it to search for available channels. It will then find them and program the tv so that they show up on the channel list. If I do not do the search, the tv does not see the channels. Maybe your system needs this prompting?