Steve says that he quit his pet-store job, claiming that he wants to move to Yosemite National Park. This was, in fact, the last regular episode that David Garrison shot before his departure from the series.
Kelly refers to an aluminum-foil-wrapped package in the freezer later identified as 'Peggy's Mystery Pack' in ep. 'My Dinner With Anthrax'.
This episode was taped on December 22, 1989.
In 'A Taxing Problem' of her own, Kelly is taxed with solving an algebra problem in which a farmer wishes to divide half of his 50 potatoes among one-third of his 6 children and the rest among the others. Kelly doesn't realize that the problem is a trick question: 25 potatoes can't be divided evenly between 2 children, and even if divided unevenly, there is no way to determine how many each of the remaining children would get. Instead, it is implied that she opts to sleep with the teacher in order to pass math; which could mean she was smarter than thought after all.