I have a question about indoor HDTV antennas. Is there a website that will give estimates on their range? I haven't bought a digital TV yet, but when I do I want to at least get some OTA signals. I'm in range of being able to get good signals from Jackson, TN from 3 stations, but I live about 50 to 60 miles (straight line) from the East side of Memphis where most TV towers are. Is there an indoor antenna that will be powerful enough to pick up digital signals from that distance? Thanks!