I liked the change (probably temporary though) in the opening credits. It's not often they've done that. There was the live action one, the one that opened last season after the movie was released, I don't know if you can count the one where Bart gained all that weight.
This marked the second time in the last few episodes we got a cameo from the three bullies. Are those guys in high school or grade school? Kearney referred to his kiRAB, so I'm hoping the bullies are in high school.