When television was first being sold in our area [back in the 1950's] there was no cable service and some people bought antennas but some used other things as antennas but either way you couldn't get but one channel and by today's standards it was so snowy that you could barely watch it and the signal would fade in and out. One thing that we tried was a bicycle rim, and it worked just as good as the antenna that was bought at the stores. I mentioned the fact that we used other things as antennas to pose an idea do you think that maybe you could hook up your tv cable to the metal roof and be able to pick up anything. We used to use insulators on the wire to hang it up but I don't remember if that was absolutely necessary.