In-vehicle electronic apparatus and method for displaying digital broadcast in the same

An in-vehicle digital broadcast receiving apparatus includes a display, a traveling detection unit that determines whether or not a vehicle in which the in-vehicle digital broadcast receiving apparatus is installed is traveling, and a video decoding unit including an auxiliary data extractor and a display controller. The auxiliary data extractor extracts auxiliary data other than moving picture data from received digital broadcast data. The display controller causes the auxiliary data extracted by the extractor to be displayed on the display when the traveling detection unit determines that the vehicle is traveling. Thus, auxiliary data included in a digital broadcast can be displayed on the display even while traveling unless doing so would interfere with safety.