A first method utilizes placeholder tags to facilitate a user's adding a tag to a video scene during a production process of a video. The tag is associated with an item depicted in the video and characterized by size, shape, temporal duration, and spatial location properties with respect to the video scene. A second method facilitates a user's customizing a video scene during a production process of a video, wherein computer-generated graphic content (logo or brand name for the tagged item) is overlaid on the item depicted in the video and associated with the tag. A third method facilitates a user to add a tag to a video scene during a production process of a video, where the video scene is related to another video scene associated with the video, and the method stores data associated with said another video scene to note the tag.