Homer's Triple Bypass - S4-E11
Audio problem: When Lisa is watching Homer have the operation, she shouts "below" but her mouth is closed. (00:20:05)
Tree House of Horror V - S6-E6
Continuity mistake: In 'Time and Punishment,' the blue button on the toaster occasionally differs from being at the bottom of the lever to suddenly at the top, visible in the first shots of Homer fixing the toaster and between shots after Homer sits on the pink fish. (00:09:25 - 00:12:45)
Continuity mistake: When Bart is looking for candy in the cupboards, the wine bottles in the nearby rack change position between shots.
Margical History Tour - S15-E11
Continuity mistake: In the Mozart sketch, the music Bart writes with his foot and then picks up suddenly vanishes in the next shot.
Continuity mistake: At the Randall Curtis's Ranch we see Randall Curtis ride off on a Ton-Ton to go to the video store but in a scene only a few minutes later we see Marge and Homer drunk, tossing him around. Unless the video store is on the ranch or very close by this doesn't seem possible for someone so determined to rent movies.
Continuity mistake: When Marge is standing by the bulldozer, someone fires an arrow which is set alight, and it lands on a tree. But in the next shot the tree in which the arrow landed on has vanished.
Continuity mistake: When Homer and Bart are fighting in the bathroom, in one shot we see the shower knock some bottles from the shelf on the wall, but then straight in the next shot they're back on the wall. (00:00:50)
Simpsoncalifragilisticexpiala(Annoyed Grunt)cious - S8-E13
Continuity mistake: When the family are watching Krusty Komedy Klassics, at the beginning of the show, they all have grey tables, with their dinner. But when Bart asks for milk, Marge gets up to get it and her table has disappeared. When she comes back the table has re-appeared.
Continuity mistake: When the Ranger stops the Simpsons' car at the start of the episode, watch his "class ring". When he puts his hands inside the car it's on the left hand. However, the flies later eat his hand and take his ring, and it's suddenly his right hand they ate and took it from.
Continuity mistake: Lisa's Malibu Stacy dollhouse disappears from the rug after Maggie spells 'price' with her blocks. (00:03:55)
Diatribe of a Mad Housewife - S15-E10
Continuity mistake: At the book signing, Dr Marvin Monroe is significantly slimmer when seen from behind than when see from in front. (00:14:50)
Continuity mistake: When Marge comes into the living room at the end, the chinese checkers game that Bart and Lisa were just playing is gone. (00:21:15)
Continuity mistake: During the scene where Homer invents the 'Flaming Homer,' The items that Patty and Selma are holding keep disappearing. The beer can in Patty's hand also appears suddenly. (00:05:45 - 00:06:50)
Continuity mistake: In the video store, Homer grabs the 'Football's Greatest Injuries' tape with his right hand. He was also holding Maggie with his right arm, so he should have dropped her. (00:06:00)
Tree House of Horror II: A Simpsons Halloween - S3-E7
Continuity mistake: When Bart gets on the bus, we see one of the twins sitting near The Front of the bus. In the next shot, we see both twins sitting at the back. The shot after that, we see the twin near The Front again, running to the back. (00:10:30)
Continuity mistake: When Mr Burns draws the moustache and horns on the T.V. screen of Marge, they just disappear in the next shot when he starts to draw the bees. (00:19:30)
Sweet Seymour Skinner's Baadasssss Song - S5-E19
Continuity mistake: When Marge, Bart and Lisa are watching the videos at the beginning of the episode, the clock changes from one time to a completely different time between shots.
The Wizard of Evergreen Terrace - S10-E2
Continuity mistake: When Lenny is telling his story, his 5 o'clock moustache keeps changing from brown to grey.
Continuity mistake: When Bart is trapped in the coffin, the cables leading to the Cadaver Cam TV disappear then reappear. (00:04:10)
Continuity mistake: When the store is being robbed, Homer throws his bag to the side and it lands face down near the stand of chips Homer jumps into. But when they are watching the video of this incident later, the bag is standing upright, far away from the spot it previously was at.