Continuity mistake: In the pilot episode, at the end of the car chase, officer Tom Hanson's weapon changes from a Police Special (.38 or .45) to a .357 Magnum.
21 Jump Street (1987)
1 continuity mistake in show generally - chronological order
Starring: Johnny Depp, Steven Williams, Holly Robinson Peete, Peter DeLuise
Audio problem: In the "Pilot" part 1, when Hanson is chasing the car we see him on his CB, yet in the shot of the car the driver's hands are on the wheel, but you can still hear Hanson talking on the CB.
Off. Tom Hanson #2: Without Jenko we're gonna be Charlie's Angels.