I am buying an new townhouse and looking at getting dish network because of its Turbo HD Package, which is significantly less than digitial cable. I only need one receiver, as I am getting the 722k and will be using a slingbox to connect my second room. I two rooms were prewired with RG-6. My question is, will the 722k need a second cable run in the living room to accommodate the second tuner in the 722k receiver, or will they be able to somehow split the cable into both tuners?