All TV antennas offer free TV channels by pulling the signal from nearby broadcast towers. The type and variety of free channels you get will depend on the radius of your TV antenna and the broadcast towers in your area. Before springing for a TV antenna, you should check AntennaWeb to see how many towers there are in your area, then pick accordingly for the best range. The most common free channels include local news, sports, kids TV, weather, sitcoms, and more.