A set-top box is a device that connects to a television and allows users to receive and display digital television signals. It can decode various formats of video and audio, enabling access to cable, satellite, or streaming services. Set-top boxes often come with features like recording capabilities, on-demand content, and interactive menus. Many set-top boxes support popular streaming services such as Netflix, Hulu, and Amazon Prime Video. They can also provide access to live television channels and may include additional functionalities like gaming or internet browsing. Overall, set-top boxes enhance the viewing experience by offering a wide range of content options.