I just purchased Direct TV for the home and a portable dish and tripod for RVing. Most blogs and tech assist concentrate on the newer RV's and Busses with Satellite dish connections. I have a cable connection but not satelittle. My question is where can I find directions and a diagram to connect the dish to the TV (s) in the camper? Thanks in advance for your help.

You may be able to use existing cable.
From Dish, coax needs to connect directly to receiver input, out of receiver to TV, or a splitter then to multiple TV's(they will all see same channel.
You may have to eleminate any splitters or anything(Amplifier, amplified antenna)between dish and receiver.
Do you know how to align?