A set-top box, also known as a cable box, decoder or TV console, is an electronic device which connects directly to a television set. It allows users to access digital television, and may perform a number of other functions. Set-top boxes receive electric signals or digital data, convert this information to a usable format, and send the converted signal to a television set for reproduction.
The Apple TV device is a well-known example of a set-top box. In addition to allowing users to access the media libraries of television broadcasters, Apple TV also supports apps which can be used to access Swiss TV plans like those offered by Zattoo and Teleboy.
Set-top boxes are not required for access to many cable television services such as those offered by UPC, if the TV set is equipped with a built-in DVB-C receiver. This receiver is built into most modern TV sets. However, set-top boxes are still required to access some of the cable TV functions (such as video on demand and time shifting) which are offered by UPC and other cable TV providers.
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