Because of this, set-top boxes are often placed beneath televisions, and the term set-top box has become something of a misnomer, possibly helping the adoption of the term digibox.OverviewA set-top box (STB), also known as a, receiver, or simply box, and historically television decoder or a converter, is an device that generally contains a input and displays output to a. The signal source might be an cable, a, a (see ), a line (including connections), (BPL), or even an ordinary or. and interactive program guides provide users of television, radio, and other media applications with continuously updated menus displaying or scheduling information.