The best reference to this is in "The Simpsons Pinball Party" (released 2003 - and repeatedly through 2009) is a quote from Grandpa Simpson: Back in my day, pi

The best reference to this is in "The Simpsons Pinball Party" (released 2003 - and repeatedly through 2009) is a quote from Grandpa Simpson: Back in my day, pinball had no flippers...