I currently run a 722, 622, and 510 using a 1000 dish pointed at 110, 119, 129. I want to add a fourth rcvr but notice that the last installer swapped out my dp44 for a dp(dpp?)33. I know I'm going to need a new switch to add the 4th rcvr but do I need to get a new dish? I'm pretty sure the Chattanooga locals in HD are on the 61.5 sat.