The history of MECHANICAL Pong?? Weird arcade and console Pong versions

While the Atari cocktail Pong arcade has created quite a buzz, but younger gamers may not realize that attempts to make a mechanical Pong game go back to the 70s, and Pong can even trace it's roots back to the dawn of mechanical gaming! Yes, a documentary on a genre most didn't know existed - mechanical Pong!

History of EM & Mechanical Pong