About 20 years ago I made a script that converts pictures to HTML tables. Back then RAM was a severe problem for this, and even for more powerful hardware browsers tended to just crash on larger pictures.

I checked it again a few years later, and things looked way better. I guess using CSS it’d be rather trivial nowadays to do the same with a short video by just cycling through showing/hiding tables of each frame.

I remember that too but it’s been so long I can’t remember if I dreamed it up. Do you happen to have the video/link?