The present invention provides a viewing restriction that prevents a user from watching an unwanted program by providing a mosaic image until a time point of comparing the restriction information provided by the program with the restriction information provided by the program after changing a channel in digital broadcasting. Screen display limitation using a program relates to a digital broadcast receiver and method,;According to the present invention, by providing a mosaic image while receiving digital broadcast data and decrypting the parental level restriction information, the convenience of the user can be greatly improved as the user does not watch an unwanted parental level image. have.;Parental Control, Digital Broadcast, Mosaic, Show, PSIP, ATSC, RRT, MPEG
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