If I have a legacy dish and don't want to deal with DirecTV installers to replace the LNB, can I use the SWM-8 with the HR44-500? I can access my attic where my current multi-switch is, just not gonna climb on the roof . Are there any draw backs to using the SWM-8 vs. the LNB integrated one? I wouldn't need to support any legacy IRDs, just really hate dealing with the installers, so if I can do it myself in the attic, that would be ideal. I currently have 2 RG6 cables running to the living room with one multiplexing OTA. I understand the SWM8 has an OTA port where the one built into the LNB does not?