Dish DirecTV Winegard questions

Thanks again to everyone for all the information. I was hoping to possibly use the winegard dome for in motion tv viewing (SD only) and use a portable for HD viewing when at the campground. But I don't know if trying to manually aim a tripod mounted dish sounds like much fun (maybe it's not that bad?), just to have DirecTV for the roof mounted dome while moving. It sounds like if I want an auto aiming HD portable for the campground, Dish is my only option which would end any hope of using the roof mounted dome while driving. Oh well, it figures the one company that the dome will work with is the one company that doesn't have an auto aiming portable unit. Thanks again for all the info.