BlackBerry 10 gives you the option to sync any type of media through BlackBerry Link via desktop/laptop or BlackBerry smartphone, if you can see from the images you will notice there is an option to use BlackBerry World for purchasing new video.
BlackBerry 10 Pictures & Video Gallery Integrated with BlackBerry Link Syncing | BlackBerry Empire
BlackBerry 10 Pictures & Video Gallery Integrated with BlackBerry Link Syncing | BlackBerry Empire