Lila answers Mr. Simmons' question "Who invented the telegraph?" with what sounds like "Samuel Morris," but the correct answer is Samuel Morse.
When Lila is finishing her first joke, Rhonda suddenly switches from her French outfit to her "usual" one.
During the Jell-O incident, Rhonda's beret disappears and then reappears. The numbers on Lila's lock are also completely out of order.
Francesca Marie Smith was credited as "Helga/Sheena", but Sheena never said anything. This credit could simply be a mistake, but there are a few moments in the episode where the girls (including Sheena) were all laughing and chattering indistinctly, so that could also explain why the credit includes Sheena.
When Lila asks if Patty would like to trade lunch, Eugene is sitting with Iggy, but as they are switching, Eugene is with Harold and Park.
Before Patty eats the sandwich, her legs are darker than usual.
In the Jell-O scene, Rhonda's shoes are white. When the girls run to hide, her shoes turn black.
When Lila is talking to her father in one scene, Helga frowns, but is giving her signature smirk when the scene shows Lila's father on the phone despite the other girls looking concerned.
In the scene, when the girls were at window, Sheena is shown to be directly behind Helga, but when it goes to the close-up scene of them crying, Sheena is barely there.
