The Valley and Corpus Locals are on the same spot beam. Your receiver is programmed by the satellite to let you receive the stations in your package. If Dish shows your last known locals to be Valley locals that's what you'll see when you move to Corpus and on up the coast almost to Houston.
At that time you'll move out of that spot beam and not have any locals until you call them and tell them you are an RVer and have moved and need your locals updated.
OR
When you get to Corpus you can call and tell them you've moved and they will send a signal from the satellite to your receiver telling it to no longer let you see the Valley locals and to now start seeing Corpus locals.
It's easy to do and it only takes a few minutes. I generally have to reboot my receiver (unplugged for a few seconds) before it will properly update the program guide to show the new programming.
By the way, the Houston spot beam reaches to the Corpus vicinity. We're in Rockport and we've been on Houston locals in three different locations - from north of Houston all the way down to Rockport. I haven't had to call and change. Probably won't until we move completely out of the area in a few weeks.
