I have DirecTv and love it, used it from coast to coast a couple months ago.
Pointers:
Write the DTV 800 support number several places or put it on you cell. After the box is inactive for a while it may be shut off. A phone call with the error number is a quick fix
Get at least 100 feet of extra cable and cable connectors and you may be able to get you antenna out of the trees or not behind a big RV.
Have a compass, entering the local zip code in set up will tell you where to point it.
If you have local stations service, the Network stations may be available everywhere if they are from a big city (SF). Local independents and PBS will not be available far from home.
Get a stable base for your antenna, those cheesy things with bungee cords are not worth the money. I use the stone base of a patio umbrella. Saw a an antenna bolted to a large concrete block this weekend, lots of options.
This does not apply to teardrops since they do not usually have tracking antenna systems but many RV'ers have switched to DirecTV from Dish. Dish has some technical issues and seem to not support RV systems any more.
Music is via XM radio so no Howard Stern. Not a loss for me.
I love DirecTV

especially with TiVo
