Most RV Trailers have an outside hookup that looks similar to this. One is usually labeled CABLE and the other is labeled SAT
![](http://www.shoprvparts.com/docs/1/4/5/1/14517F-f.jpg)
On the inside you usually fine a single TV JACK plate usually next to a 120VAC receptacle where the TV is installed.
![](http://www.heartlandrvs.com/media/products/gallery/2011_PR_27PSBD_66.jpg)
The OTA OUTSIDE ANTENNA uses a TV PANEL that looks like this.
![](http://pimages.solidsignal.com/RV-7042_medlrg.jpg)
There is usually a 12VDC receptacle here and a BUTTON to push which supplies 12VDC to the PREAMPLIFIER located inside the roof mounted antenna. Some folks call this the ANTENNA BOOST panel...
Being used the TV setup area is probably changed around by the previous owner to suit their needs so you may have to look around the walls and cabinets to find these item.
Roy Ken