a television set include a dvd - ic 20 for outputting a composite signal a containing subtitle information and closed caption information , a tv - ic 10 for outputting an osd signal b based on the closed caption information identified in the composite signal a , and a serial bus connecting the dvd - ic 20 and the tv - ic 10 . the dvd - ic 20 informs the tv - ic 10 of the setting status of subtitle display based on the subtitle information in a dvd player . the tv - ic 10 , if the setting of subtitle display based on the subtitle information in the dvd player is on , turns off the setting of subtitle display based on the closed caption information in the television receiver , thereby prohibiting an osd signal b from being outputted .