When I was little I used to make videos with my (parents') video camera. It had a bug/feature. If you pressed the "record" button twice, rapidly, while the camera was in standby mode, it would record exactly six frames of video. This allowed me to create stop-motion videos of a consistent speed, although that speed was less than ideal (5 fps instead of 30).
Now, with the advent of digital video editing, I can finally play those old videos at their intended speed!