Digital tuners are electronic devices that receive and decode digital signals for audio and video content. They are commonly used in televisions, radios, and other media devices to access channels and improve sound and picture quality. Digital tuners can pick up signals from various sources, including terrestrial broadcasts, cable, and satellite services. These tuners often come with features like automatic channel scanning, which helps users find available channels quickly. Many digital tuners also support high-definition (HD) content, enhancing the viewing experience. They are essential for modern media consumption, ensuring compatibility with digital broadcasting standards.