http://whatculture.com/tv/simpsons-20-annoying-mistakes-didnt-notice.php

The devil is in the details, and Fox don't always seem to care...

The Simpsons needs to get its facts together.

I agree...

...this show has TOO many loopholes. There's also the time-slide and what state are they REALLY from...so that's why I say "The Simpsons is set in Springfield, Timbuktu, USA".

I can't even watch the 1st 13 episodes now because of it!

I can't even watch the 1st 13 episodes now because of it!
I can't even watch the last 13 seasons because of it.

Actually the plotholes that were annoying to me was how many different times Marge and Homer met. Was it at camp, high school? Remember when the flashed back to the 90s? Sadgasm? That was a rewrite.

Also, how many weddings they had. Supposedly, it was Shotgun Petes. But if you watch the Simpsons movie, when Homer puts the tape in, you see them dancing at there wedding. Only thing there family was there and at Shotgun Petes, it wasnt.