When Manjula was presenting the Quick & Fresh to Apu, the workers push the Kwik-E-Mart picture to Apu's right, but a few seconds later, he jumps to the left to hug the picture.
When the Police Tank is first seen, Ralph is in the same hatch as Lou, but in later scenes, Ralph is gone.
In "Homer the Heretic", Jamshed Nahasapeemapetilon appears to be between the ages of six and ten. However, in this episode he appears to be in his early twenties, which may count him as one of the only characters on the show that age.
Sideshow Mel was shown at the "Quick & Fresh" when the products start going bad, but a few seconds later, he appears as a firefighter on the firetruck dancing and his skin is yellow.
When Bart pulls down the switch for Quick & Fresh, the food in the store goes bad immediately, when logically, it would actually take one entire day for the food to go bad.
On Disney+, if you look at the description for the episode, Kwik-E-Mart is misspelled as “Kwiik-E-Mart.”