Look Marge, you don’t know what it’s like - I’m the one out there every day putting his ass on the line. And I’m not out of order! You’re out of order! The whole freaking system is out of order! You want the truth? You want the truth? You can’t handle the truth! ’Cause when you reach over and put your hand into a pile of goo that was your best friend’s face, you’ll know what to do!! Forget it Marge, it’s Chinatown!!!— Homer
One of the staples of the Simpsons' opening credits is the blackboard gag. Bart writes something on the chalkboard as a punishment, quite often ironic. Here we list them all, including screenshots where useful. Any episodes not listed here do not have blackboard gags.
Season 12 starts 27th September.