TV is alive and well. The antenna will work on digital as well as analog, although if the RV has an older TV it's likely analog only and would need replacement of a converter (not recommended). For the time being most of the TV stations in the US are up on UHF, but that's about to change so if you elect to get a higher performing antenna, make sure it is designed for VHF as well. Right now the Winegard Sensar (Batwing) is the best out there on both bands.
After that and like before, it totally depends on where you camp.