Here's my set-up. I have (2) dishes, (1) for 110/119 (using a Dish Pro+ twin LNBF) & (1) for 61.5 (Dish Pro+ dual LNBF ). I also use an OTA to get my locals. I get SAT & OTA in (2) rooms via a 211 HD receiver in each room. In a 3rd room, I strictly want to get my locals via the OTA. Do I need a switch in the attic to do this? Right now, all the SAT leads & the OTA lead come together in the attic & go into a splitter. When the installer hooked up my 2nd 211 receiver the other day, somehow he disconnected my (1) room which was getting fed the OTA. Any feedback would be appreciated..