It's a broadcasting milestone and…a literary event of some notoriety, I think?  The 500thepisode of The Simpsons airs the weekend of February 19, 2012

; every Simpson's title sequence chalkboard gag is posted for us to read on the web! I am ( - descriptor omitted for reasons of psychological import - ) to say that, yes, I read every one. For your edification (and probably a deeper look into my mental processes than you’d like to have) I offer a few that I found, um, noteworthy:

  • Beans are neither fruit nor musical.
  • Daylight savings is not a bank.
  • I did not see Elvis.
  • I will not bite the hand that feeds me Butterfingers.
  • I will stop talking about the twelve inch Pianist.
  • The president did it is not an excuse.
  • I will not defame New Orleans.

Go ahead, read them all for yourself http://thefw.com/simpsons-chalkboard-gags/