Set-Top Box

A Set-top box is a generic term for a video receiver, such as a cable or satellite receiver, that was originally intended to sit on top of and connect to a TV set (although today's flat-screen TV's make this a misnomer).

Set-top boxes convert proprietary digital video signals into conventional video (often high-definition) and audio.

Since the set-top box tuner replaces the TV set's built-in tuner, it often requires a separate remote control.