I have the HR44 receiver and RF Mogul automatic dish for the RV. I move the receiver to the house when we're home. I would probably keep the DNS and install a dish at home based on what you posted.
With 2 different TVs the HR44 automatically detects and adjusts its settings with a HDMI connection.
With a Genie Client for a second TV you'll need a SWM splitter (only a few $) and the cost is about $7. A wireless client might also be a option, check out the equipment and the minimum distance installation restrictions to eliminate WiFi interference.
I purchased a second power inserter and remote so that they remain in the rig and house. The remote is RF only and my receiver is mounted vertically in a closed cabinet - ie no need for flat line of sight mounting.