Was fiddling around my attic in the house I've lived in about a year, and discovered the previous owner had at one time constructed a TV antennae using wire connected to terminals. It's a four sided antennae, each side running about 10 feet. I'm wondering if this could be used to pick up OTA HD signals. I'm pretty close to the antennae cluster in L.A. County (91001 zip). Using a silver sensor in the attic, I get CBS and ABC pretty reliably, and everything else sketchy, with Fox not at all. Does this seem worth the effort (would just have to buy a new attachment for the coax cable)? Thanks in advance.