Other mistake: In the interior shots of Station 51 (the studio set), when facing the rear apparatus bay door, the right wall has a door to Captain Stanley's office, a very large map, the radio receiver base station where they respond to dispatch, the kitchen doorway, and a double-door closet, that's it. However, when Station 51 is shown in the exterior shots (the real Station 127 aka 51), as either the engine or squad exits when the apparatus bay door is up, we see that the right wall has many more doors on that wall. Additionally, the opposite wall on the set has only two doors - one to locker room/bathroom, and one to the dorm, however at the real 127's, that wall has three doors - two of them are to the dorm.
Deliberate mistake: Rampart's ER is located in the south lower wing of the hospital complex and it is only a two-storey building (with a basement), but the elevator, which is located past the nurses' station at the wing's far south end, has two floor indicator panels listing eight floors - one panel over the elevator doors and another we see every time the elevator doors open, which is not possible.
Revealing mistake: Squad 51 has a flashing light-bar mounted on the roof of the vehicle. There is about 4-5" of space between the length of the light frame and the roof, which means that Squad 51's surrounding environment is easily visible through that gap in normal shots. The hiccup here are certain close-ups of Gage and DeSoto while they're 'driving', because that gap is covered (with red to match the vehicle) and sometimes, when it's daylight, the gap is dark. The same thing happens with the space behind the cab unit (seen through the window), with the red blocking the opening.
Revealing mistake: When Engine 51 and/or Squad 51 are dispatched, the shots of the vehicles when they are first dispatched, while en route to the call or en route to Rampart, etc, in many instances, are stock footage or repeat shots which show the same traffic, same parked cars, same people, etc., from previous episodes.
Continuity mistake: When Squad 51 is dispatched and headed to their destination, interior shots looking out the windshield are shown. It is only in these shots that the Dodge truck's red hood has vents on its right and left sides. There is no such thing in any exterior shots of Squad 51. The hood's style also changes.
Continuity mistake: During the first two seasons of the show, when Engine 51 and Squad 51 are dispatched, sometimes one or both vehicles change their appearance when they leave the firehouse, while en route, or when they reach their destination. Note the hood, lights, etc.
Revealing mistake: When Squad 51 is dispatched from the stationhouse, the exterior shots show buildings, traffic, trees, etc., they pass along the way. In some close-up shots of Gage and DeSoto while en route, too much of the vehicle's left and/or right sides are visible, which actually shows nothing but a blank screen behind them.
Continuity mistake: In nearly every episode, the dark blue jackets that Gage and DeSoto wear suddenly appear and/or vanish and then reappear, numerous times, while en route in their squad, or when they pull into the stationhouse and Rampart. Since stock footage is usually used when showing all the guys getting into their vehicles, Johnny's hair length may differ as well.
Revealing mistake: In many of Dixie's close-ups the use of the soft focus lens is rather apparent. This could be an acceptable directorial decision, were it not for the fact that in some shots where there's movement (of a hand, for example) that passes through the corners of the shot, the thick 'hazy cloud' is blatantly visible and quite distracting.
Other mistake: On Emergency! there's a noticeable lack of blood (not that it's a bad thing), even on the medical disposable gloves, during numerous scenes such as when a victim has arterial bleeding from carotid, brachial, and femoral arteries, or during the surgical procedures, and the labor/delivery scenes.
Other mistake: There are two specific pieces of stock footage used from season 3 onward, when the camera faces the fire station, it shows either just Squad 51, or both Squad 51 and Engine 51 pulling out of the apparatus bay, then turning left (viewer's right) onto E 223rd St, and the real Station 127's Truck 127 can be seen parked in the side driveway. Examples are: In season 6, "The Exam", when Squad 51 responds to Molly's phone call, and in "Hypochondri-Cap", when Station 51 is dispatched to an 'unconscious female in a car'.
Continuity mistake: Frequently during the first two seasons there will be long shots of Squad 51 running down the road but it has mysteriously become a mid-60's Dodge (easily visible because of the red painted grille) instead of the familiar 1972+ model Dodge with a chrome grille. It also has 51 on the door which makes for a significant paradox.
Other mistake: When the plane crashes into the neighborhood and traps Gage and DeSoto in the house, you see outside shots of the squad when the other two paramedics arrive. You can see a large piece of smoking engine/plane laying on the back end of the squad, right over the spare air tanks. They would have exploded when something that heavy and hot landed on them, since they are filled with oxygen. The tanks would be full or they would not be on the back of the squad.