I read this post http://www.satelliteguys.us/dish-network-technical-discussions/137214-how-feed-external-antenna-tv2.html and I'm trying to figure out the same thing. I have a 522 connected to 2 TV's. The 522 and TV1 are right next to each other in the living room. I want an over the air digital signal fed to the (new HDTV) in the living room which is TV2. I can easily run a new RG6 cable (connected to an outdoor antenna) to TV2. I want to combine the 522 TV2 out cable and the antenna cable to the single coax input on the new HDTV (TV2). With some drilling and fishing lines through walls I could perhaps run the antenna cable to the 522 receiver (want to avoid that if possible, and TV1 is an old non-HD TV). What's the best way to approach this? Thanks (yeah- this stuff confuses me...)