I'm RV'ing at zip 37388 with a standard directv receiver that is card programmed for SWM/Slimline HD tv at zip 32708 using sat 101. The guy next to me has Dish and he's looking at 119. When I setup for multiswitch and 18" round at zip 37388 it stays on sat 101. Is this right or how can I change satelites? The +/- switch won't move it from 101.