Tim Hunkin (the man behind these arcades) also did an
excellent video series called "The secret life of machines" for the BBC in the 80s.
It was recently remastered, and is now up on youtube: https://www.youtube.com/watch?v=CJlrbMHLBd4&list=PLtaR0lZhSy...
(All three seasons!)
I cannot recommend it strongly enough.