D'OH!
There's nothing devoted television fans love more than a right old clanger smack bang in the middle of one of their favourite TV shows, and The Simpsons has had plenty of them.
The beloved cartoon has been running since 1989, and continues to deliver the goods — especially when it comes to eerie real-world predictions — to this very day.
But executive producer Matt Selman has spotted a glaring boo-boo in one of the show's most significant episodes, and he took to Twitter to share the gaffe with fans.
Simpsons devotees will remember the 'And Maggie Makes Three' episode in season six, where Marge breaks the news to Homer that she's pregnant with their third child.