Nintendo Video was a free application for the Nintendo 3DS that automatically downloads 3D videos whenever the system is on. The videos range from movie trailers to original videos made just for the 3DS, and four videos are available at any one time. You have no option about which videos you receive and no videos can be saved permanently. Note that different regions will receive different videos. Old videos have been resent regularly, in which case they usually appear in the bottom right position.