Has anyone hooked up an OTA HD receiver along with an existing sattelite receiver/pvr? I have a Dish network pvr/receiver currently, and am looking at purchasing a Samsung OTA receiver so I can at least get my local HD programming on my HD ready tv? I am trying to find out the best way to connect it. Should I just split the cable at the wall outlet, put one end into the pvr/reciever, and one end into the OTA reciever? Then put the digital audio cable of the OTA into an open audio jack on my audio reciever? How do I switch the tv from one picture source to another? Help!