A method, apparatus, and computer-readable medium display a video with a set of tags selectively overlaid on the video. The method causes a display device to display a sequence of video frames. The video depicts a plurality of visually perceptible items, and the video frames as displayed do not include any tags, thereby depicting the video in a tagless mode. The method also receives a signal requesting that the video be displayed in a tag mode. In response to receipt of said signal, the method overlays one or more visually perceptible tags on the video frames at specified positions, thereby causing the display device to display the video in a tag mode. Each of the overlaid tags is associated with at least one respective visually perceptible item appearing in the video.