I have a a tripod antenna with the new LNB with built in switch connected over a single line to a 123254 seperator and a 625 DVR in my RV. Sometimes when I travel, I like to watch local news on the park cable if it is available. Is there a way to run the park cable on the same line so I don't have to punch holes in my new rig (or run wires out the window)? My last RV had separate cables for Sat & Cable, so I just hooked them to the connections on the back of the 625. The DVR also came with a 175284 Triplexer that I don't use.