I guess i dont know what kind of balcony you have but would a rail mount kit work for your scenerio. If your balcony has metal rods instead of stucco or concrete that might be your cup of tea...Most HSP's carry them you just have to ask for it if its not already suggested
Directv does not have any dual tuner receivers atm. So you would have to run lines to the places you need them. plus you would have to run 2nd lines to places where you want dvrs. Sry dude
