The Simspons new opening

In order to stay fresh, every twenty years or so a program has to change its opening. So, after running the same thing almost every week—with only a different chalkboard message and a different couch gag, with exceptions made for two Christmas episodes and annual Treehouse of Horror episodes around Halloween—the creators of The Simpsons have updated the opening to their show for the first time since 1989. 

Updates included the addition of new characters and nods to several character developments that have come along since Bush-41 was president. 

This kind of thing is necessary. Imagine if the Brady Bunch still had the first tic-tac-toe arrangement of the kids when they were very little, while the show had Greg growing facial hair and Marsha growing... er... other things. That would just be creepy. Even creepier than me pointing it out. 

Anyway, as BJiT points out, it might get old watching Homer smash through the door every week or the Jebediah Springfield's head fall onto Ralph Wiggum, but for the most part "it's a good reworking." 

And what does this have to do with Korea? Well, the animation was almost certainly done in Seoul. All things Simpsons-related are Korea-related, and vice-versa.