Method for setting output format in STB

The method comprising the steps of, in particular, set the output format of the STB to any one reserve of a number of output formats in which the STB can support ever relates to the output format setting method of the digital set-top box (STB) that provides a variety of output formats, When the output format set in the step preliminarily a key for selecting an output format from the user in accordance with the method for displaying information recognizable whether matches the input format of the display device, the displayed information input the preliminary the output format is set to consist of, including a step of fixing an output format of the set-top box, while using the first connection to the display device by the STB, or connect the display device to the STB a user after each change to the display device in a different format having to inconvenience the need to switch operation It eliminates, it can also eliminate the hardware switch can lower the cost. Set-top box, the output format, OSD