I am in a poured-reinforced concete house with a sealed attic and no easy way to fish antenna cable through the walls or under the floor trim to a good location for the antenna near a window looking out toward the antenna field in my area. Does anyone know of any wireless antenna transmitters and receivers that would allow me to place the antenna near the window and not run cable from that antenna to the HDTV? I couldn't find any discussion on this site. Thanks./