STB, or Set-Top Box, is a device that connects to a television and allows users to receive and decode digital television signals. It can provide access to various services, including cable, satellite, and streaming platforms. STBs often come with features like recording capabilities, on-demand content, and interactive applications. Many STBs support high-definition (HD) and 4K video formats, enhancing the viewing experience. Popular brands include Roku, Apple TV, and Amazon Fire TV. These devices have become essential for accessing a wide range of entertainment options, making it easier for viewers to enjoy their favorite shows and movies.