Corrected entry: When Smithers realises that he shot Jasper, instead of Mr. Burns, he mentions that he left the meeting early in order to watch Pardon My Zinger. However, in the previous episode, you see him walk out of the meeting with everyone else, very slowly. (00:06:25)
Corrected entry: When Bart and Grampa are on the shore looking at the paintings that they have just rescued from the bottom of the sea, the authorities suddenly show up. How did they know that they would be there, and that they would have the paintings?
Corrected entry: The receptionist fires 4 shots from a double-barreled shotgun.
Corrected entry: When Burns and Grandpa first open the safe to cross off Asa Phelps, they turn all the keys to open, yet no spotlight shines out to sea. However the when Grandpa completes the same procedure on his own, the spotlight appears.
Corrected entry: Lisa says that Jebediah Springfield is indeed Han Sprungfeld because there's no record of Jebediah Springfield before 1795. Yet in "Whacking Day", Bart mentions that there is a historical record of Jebediah Springfield serving in the Battle of Ticonderoga in 1777.
Corrected entry: During the "Who Shot Mr. Burns" alternate ending with Smithers shooting Mr.Burns, Smithers is smartly dressed and wearing his jacket. At the end of part 1 and start of part 2, Smithers was badly dressed. Carl also points out at the end of part 1, that Smithers left his jacket on his chair after The Town hall meeting.