In "New Kids on the Blech" when Homer is pinching Lisa with the "jealousy bug", the sign behind him changes from a gift store to an antique store.
When L.T. Smash "recommissions" the aircraft carrier, the two labels on the lever read "commission" and "decommission", but in the next scene, the labels read "boat" and "museum".
Lisa learns of the backwards subliminal message by rewinding the cassette. VCRs don't play sound when the video playback is being rewinded.
The establishing shot for the scenes inside Classified Records shows the front of the building decorated with musical notation for the opening of "The Star Spangled Banner" (the National Anthem of the United States of America). The 12-note excerpt, in the key of G major, is correct except for a couple of small errors. The first two-note figure and the last two notes of the second bar are written as barred eighth notes with the first one dotted, which would mean the second should be written as a sixteenth note, which it is not. At the end of the short excerpt, what is written as the last bar should be two bars; the missing bar line should be just before the last half-note D.
JC Chavez is dragged off by M.P.s, or Military Police. Since he's being taken into Navy custody it should be the Shore Patrol, or S.P.s.
"Yvan eht nioj" backwards would sound like "j-aww-een te n-ah-vy".It would have to have been sung like "ee-vain eth noij" for it sound like "Join the Navy" in reverse.
One of the writers at Mad magazine suggested they do a TV spoof called "Everybody Hates Raymond". This makes no sense. The episode debuted in February 2001, and in August 1998, Mad had already done a spoof of Everybody Loves Raymond, entitled "Everybody Loathes Raymud".
When Lt. Smash's superior informs him of Project Boy Band's termination, he shows him "next week's issue" of MAD magazine, but then says the issue is to hit newsstands the following day.