When Homer is driving his car, he is disappointed to hear "(They Long to Be) Close to You" by the Carpenters, but is in better spirits when he changes the station to hear "The Joker" by the Steve Miller Band, to which he sings along. However, "Close to You", plays in Homer's mind when he first lays eyes on Marge, indicating love at first sight. "The Joker" plays over the closing credits.
Jacqueline's hair is a slightly lighter shade of blue than Marge's.
In the background at Coach Flanagan's office, there is a calendar that appears to have a picture of a naked woman. This is a reference to the common stereotype that high school coaches and physical education teachers are often perverted.
A brief scene of "I Married Marge" is shown (the part where Dr. Hibbert tells Marge about her pregnacy and Homer yells, "D'oh!"), but it would not be until the following season that that story would be told in its entirety.
When Homer is given the pamphlet about the power plant he is told it is a job that does not need a college education yet in "Homer Goes to College" Mr. Burns is ordered to enroll Homer in college-level nuclear physics classes or else face sanctions from the Nuclear Regulatory Commission. However, this came after Homer got his promotion to safety inspector, so it is more likely that the entry-level job Homer got when first hired did not require any college training.
Mr. Burns' picture can be briefly seen on the obverse of the SNPP pamphlet Homer gets from his guidance counselor.
This is the first appearance of the Sarcastic Clerk. (Raphael)
Homer's guidance counselor's door reads M-Z, but the counselor says N-Z.
The councelor mentions that they're going to open the nuclear power plant soon, but it was already opened when Homer was twelve. It's possible that the plant had been closed down previously but was being re-opened around the events of this episode.