Continuity: Across whole show: In many of the interior shots of the paramedic cab, as it heads to the destinations, there is a rear view mirror on the windshield. In all the exterior shots there is no rear view mirror.

Continuity: Season 1, episode 4, 'Cook's Tour': At the station, when Gage and DeSoto are eating the meal DeSoto prepared, the sealed milk container is suddenly open and then sealed again, between shots. It changes position as well.

Continuity: Across whole show: 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: Season 1, episode 3, 'Botulism': When DeSoto and Gage arrive at Rampart their black helmets are not hanging in Squad 51, when they enter the hospital. A moment later, when they're dispatched, both helmets are hanging in their proper place behind the seat. The distance between the squad and ambulance has also increased.

Continuity: Season 1, episode 6, 'Dealer's Wild': When Engine 51 and Squad 51 are dispatched to the first call, both vehicles change their appearance from the first shot as they leave the firehouse, the shot en route, and when they reach their destination.

Continuity: Season 1, episode 6, 'Dealer's Wild': When Gage plays the new game of poker with Kelly, the entire left side of the table is visible as the two begin. Next shot, DeSoto is suddenly sitting at that end, with an additional cup and saucer, opposite Kelly and Gage.

Visible crew/equipment: Season 1, episode 11, 'Hang up': At Rampart, when Dixie walks over to Dr. Brackett, who stands behind the station, the tape mark is visible on the floor, just before she steps precisely on it.

Revealing: Across whole show: 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: Across whole show: When Engine 51 and/or Squad 51 are dispatched, the shots of the vehicles while en route to the call or even en route to Rampart, in many instances, are stock footage or repeat shots which show the same traffic, same parked cars, same people, etc., from previous episodes. The same occurs when they actually pull out of Stationhouse 51 - it's actually pretty amusing to see the same cars across the street, in countless episodes.

Continuity: Season 2, episode 7, 'Fuzz Lady': At the stationhouse, when DeSoto and Gage are discussing the detective, in the shots facing Gage, DeSoto holds a cup of coffee in his hands, but in the shots facing DeSoto his cup is on the table.

Revealing: Across whole show: 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: Season 2, episode 9, 'Women': The shaving foam on DeSoto's face changes between the face-on shots and the reflection shots, and in the reflection he shaved from cheek to chin, but in face-on shots only to the neck.

Continuity: Season 2, episode 9, 'Women': When Christy walks into Station 51's kitchen, the bag strap is on her shoulder, but close-up it is gone, only to be back next shot when she removes it a moment later.

Revealing: Season 2, episode 12, 'Helpful': En route to the pick-up truck hanging from the freeway on-ramp, there is a flipped shot of Engine 51 and Squad 51 as they drive under the freeway before the camera pans in towards the car. Some giveaways are the reversed '51' on the Engine and the reversed 'road construction ahead' sign.

Continuity: Across whole show: In nearly every episode, it's amusing to note how 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.