Ota

Over-the-air, a popular acronym for receiving free digital television. You may see "HD Antennas", but remember that there is no such thing, you simply want an antenna that can receive the frequency of the channel(s) you want to receive.

Digital-Home forums regarding OTA

tvfool shows you what you should be able to receive in your area

DIY Antenna
tvantennaplans.com

lifehacker.com

diyfreetv.blogspot.com Beer can antenna. Amusing, but not optimal.

funkylist.com