1. You need a switch from one source to the other one, antenna "A" to the TV or switch to "B" for the park hook up or satellite.
2. You also need a converter for the new broadcast format for the antenna signal, I do not remember what they call it, it has been some years.
3. If you can install a wall receptacle on the side of the RV it is easier than having to climb on the roof to connect and disconnect cables, the wall receptacles are rather easy to install and are sold at Lowe's or Home Despot.
navegator