You can try some things now to get a sense of how an antenna will perform. Likely your TV can take an antenna input. Go to Home Depot, Walmart or someplace that sells antennas and find one that can easily be repackaged if it doesn't work out. Hook the antenna up to your TV and view the TV input. The TV will have to scan for channels, and then you can see the quality of what you get. Using those antenna websites given earlier will also help you see what stations you should be able to receive. As a bonus, there are many unexpected stations OTA. Lots of subchannels have a variety of reruns showing stuff anywhere from the 50's to today.