I was only introduced to Schoolhouse Rock in recent years when my children received a set of the videotapes. I credit the series for their fascination with science. Now I wish these were available when I was a child!
This really is a cathode ray type thing, isn't it? Or a dot matrix printer, just on a slower and larger scale. The most difficult part would be sorting the different shades of balls after its done.
You should put the word out for someone who speaks Mandarin or Cantonese.