Simpsons big celebrations

Wow!!!! Can you believe it the Simpsons have been around for 20 years. To me it does not seem possible but if I look back on it I can see that the Simpsons were around even before most of my teens were. That seems like a lot of time in just a short time period. Along with their anniversary they are also celebrating 450th show. Tune in to see the special show they have in store for you tonight on FOX