A television antenna is a device that receives broadcast signals from television stations. It captures electromagnetic waves transmitted through the air, allowing viewers to watch free over-the-air channels. Antennas can be indoor or outdoor, and their effectiveness often depends on their location and design. There are different types of antennas, such as dipole antennas and Yagi-Uda antennas, each suited for specific reception needs. Some antennas are designed to pick up signals from long distances, while others work best for local broadcasts. Proper installation and positioning can significantly improve signal quality and reception.