The rose that Homer gives to Marge appears worse for wear when he arrives home, yet it appears pristine later, when Marge is holding it.
The telephone in the TV room changes from red to blue.
As they watch the Happy Little Elves and America's Most Armed and Dangerous, intercutting scenes depict Bart and Lisa's feet as either dangling or not dangling over the couch cushions.
The interior of the Simpsons house keeps changing designs between shots.
Marge says she is 34 years old. Even though this episode aired as the final episode of the season, the production number indicates it was the first episode to be made, yet in the ninth episode of the season, Marge has a birthday where she turns 34 years old.
When Miss Botz opens the cabinet in the basement, she exclaims that in there are homemade pickled beets, but all that's in the jars is clear red liquid.
In the original pilot version of this episode, when Marge is wanting to kiss Homer, she accidentally kisses the door instead, this part was removed in the final version, and later in the episode you can still see the kiss on the door, but it's not removed in the final.
Homer's voice fluctuates wildly in this episode, one of the first to be filmed. Sometimes, he speaks in an imitation of Walter Matthau, e.g. when he is rehearsing what he will say to Marge outside the house, and sometimes he speaks in a voice which Dan Castellaneta later settled on for Homer (in the flower shop).