In this shot from “Lisa Gets an A” Dr. Hibbert appears much shorter than normal

In this scene from Duffless the shirts of the two men seated behind Homer change colors.

That’s the saltiest thing I’ve ever tasted—and I once ate a big heaping bowl of salt

In this scene from “Treehouse of Horror X” only Frink’s face is drawn in

The cloud in the smokestack doesn’t move.

this episode also features Agnes Skinner with a mustache, a huge moment for the show

Off-model Bart from “Treehouse of Horror V”

“TOH V” also features the first appearance of Little Moe Syzslak

Frame from “Bart Gets Famous”

From “Mother Simpson,” Homer’s foot is drawn over bed frame

In “Home Sweet Home- Diddily- Dum- Doodily” Bart and Lisa’s plates turn into bowls.

Found a blink from Lisa that just uses the upper part of the eyelid

In this frame from “Lady Bouiver’s Lover,” Lisa has two noses.

In this frame from “Homer the Heretic,” Homer’s eyelids are painted white

In this scene from “Marge vs the Monorail,” Grandpa’s mouth briefly disappears

Same scene in “Monorail” Lovejoy has an extra-long head

Simpsons Goofs A deliberate choice to give you all something to work with —

The Simpsons | Notable goofs Posted by jon_bois at 22:24 ET 2001-3-11 Professor Frink says that pi is exactly 3. It is actually followed by many decimal places. Unrealistic for a professor to not know this Posted by jon_bois at 14:17 ET 2023-3-10 Just got the joke! Really funny