 CONT: There are a number of stock footage continuity errors. The  major one is the differences in Squad 51, which was always a Dodge  pickup, but several model years were used on the show. Most of the  street scene footage that shows the Squad traveling was shot in  Season 1, so an older model usually appears that doesnt always  match the Squad that leaves the station or arrives at the scene.  Another continuity issue is repetitive use of the same response  footage episode to episode, so the same cars are always stopped at  the same spot at a particular intersection.