The K of Steel (1984-1990), or Kartes Video Communications is a logo that is seen on many home releases of classic Peanuts cartoons.
It consists of a starry night sky with a 3x3 grid of 9 K's zooming towards us. A sheet of metal with cutouts of the K grid zooms out and join together with them, then the real logo (along with the company's name below it) zoom out followed shortly by “Presents". We also hear synthesizer music playing while this is going on.
None to High- The zooming K's and the music may be unnerving, but is otherwise harmless. Some even found the music to be calming.