1. A method of processing a digital broadcast signal in a digital broadcast receiver, the method comprising: receiving a digital broadcast signal including a broadcast program and a rating region table (RRT), the rating region table (RRT) including both a rating region field identifying a specific geographical rating region to be associated with the rating region table (RRT) and at least one local rating information including a local rating value which is valid for the specific geographical rating region, wherein the rating region table (RRT) further includes a global rating field defining a global rating value which is valid for geographical rating regions, displaying a first information identifying whether a function on the rating of the broadcast program is to be set up; displaying a second information identifying types of the rating; displaying a third information identifying levels mapped with each of the types, and blocking display of the broadcast program based on the first information by comparing user's set up information with the rating of the broadcast program based on the first, second and third information and controlling to block display of the broadcast program depending on that the rating of the broadcast program corresponds to the user's set up information.