There are provided a news/weather-forecast editing device 10 that updates content with a high real-time sensitivity and information that constitutes an external program listing; a news/weather-forecast dedicated distribution server 20 that creates an external program listing showing a display order of the content with a high real-time sensitivity, an advertisement-content editing device 30 that updates content with a low real-time sensitivity and an advertisement program listing, which shows a display order of the content with a low real-time sensitivity and also a display order that follows the external program listing; a content database 40 that stores therein the content and the program listings; a distribution server 50 that periodically checks the content database 40 and distributes updated content and program listings; and individual distribution devices 61 to 65 that distribute content and program listings that have been distributed from the distribution server 50 to vehicles 71 to 75, where each of display devices incorporated in the vehicles 71 to 75 displays the content according to the display order shown in the advertisement program listing and the external program listing.