You still have the 2005 Model? If so we need more info.
1. Does the RV still have the OLD style CRT TV's (Picture tube)?
2. Does the RV have updated LCD TV's?
3. Do any of the TV's have a 12 volt power source or are all TV's 120 volt?
4. What type of switchbox do you have to switch between Cable and roof top OTA(over the air) Antenna? Is it a multiple button pushbutton switch box? Is it just the standard wall plate booster with the On/Off button with indicator light?
5. These questions need answered before anybody can give you any constructive help. Doug