OP you don't say what type of unit you have. Please fill out your Signature. Having this info will help us Help You. Some units are not wired the same so you may have to get some wires added to be able to enjoy watching separate things on 2 tv's if you get Dish because they don't post all channels on each SAT.
As I had stated earlier, I prefer Dish for the ease being able to change locations and get local channels no mater where I go just by updating my information online. No matter what you should get a portable dish also. There is going to be that time when your view of the southern sky is not clear enough to lock on to the SAT's unless you move your MH and you can't do that, so that's when you break out the portable and set it up.