Revealing mistake: When Johnny climbs up to the roof to get Sheba down, Johnny has two long shadows, one from the sun and one from the set lighting.
Audio problem: At the start of the episode, while Johnny's mopping and Roy's fidgeting with the resuscitator, during their conversation, in the background we hear Captain Stanley talking to the other guys in the kitchen. The key words we hear Cap say are, "New problem location in our area...Molded products...Cardboard cartons...Two rows, aisles in between, up to 8 ft high...Bottoms get soaked." Then we hear Cap repeat, "New problem locations in our area," and continues, "1806 North Oak," and we hear all the guys laugh, though nothing's funny. Captain Stanley's dialogue is from 2x1, "Problem," at the start of that episode.
Visible crew/equipment: When Squad 51 responds to 'man injured', when they arrive at the house, Johnny asks Roy if there's a dog on the roof, and it cuts to a shot of Sheba, the dog, just as she glances toward the tree, and behind the tree we can see the moving legs of a crew member, likely Sheba's trainer.
Revealing mistake: When Johnny and Roy are in the storm drain searching for the two missing boys, all the walls have very distinctive water stains and markings, and the same walls and drains keep repeating, no matter the distance they have walked.
Continuity mistake: After Johnny has gotten Sheba off the roof, he and Roy stand by ladder as Sheba takes off after the cat again, and in the shot of the dog running across the roof Roy and Johnny are gone - the ladder stands alone, but in the next shot the paramedics are by the ladder again. Also note that the door behind the ladder is alternately closed or open, depending on the shot.
Visible crew/equipment: When Johnny climbs the ladder and then picks up Sheba to carry her off the roof, the outline of the mic transmitter is visible on the back of his shirt. Additionally, as he's lifting Sheba the big dog pushes up against the front of Johnny's shirt, and we hear the crackling noises that were picked up on Johnny's hidden mic.
Continuity mistake: When Roy and John are in the apparatus bay talking about Joanne, just after Roy walks away, Boot steals the armboard splint package with the writing facing up in his mouth, but when Boot hides under the squad the reverse side is up in his mouth.
Continuity mistake: When Johnny and Roy have to go in search of the two boys lost in the storm drain, the air cylinder that Johnny grabs from the squad has two large red stickers, but when Roy and Johnny climb down below, Johnny's air cylinder has changed - both of their tanks now have the large arrow stickers.
Visible crew/equipment: When Gage and DeSoto are on the football field with Steve, the quarterback, the outlines of both the mic transmitter and wire are visible on Gage's shirt as he helps Steve sit down on the gurney. Then when DeSoto takes Steve's blood pressure, the outlines of both the mic transmitter and wire are also visible on the back of DeSoto's shirt.
Visible crew/equipment: While the guys are sleeping at 12:47 am, the camera moves across the dorm, and just as the camera moves past the brick wall divider beside Roy's bed, it casts a moving shadow at the top.
Other mistake: Roy and Johnny are in the squad when they're dispatched to the fire at the junior high, and while en route in the interior shot, in the rear-view mirror we see the reflection of the driver's helmet, and it has an 18 on it, instead of 51.
Visible crew/equipment: During the rescue of the unconscious boy stuck within the tree, when DeSoto climbs the ladder to begin chiseling at the tree, the outline of the mic transmitter is visible on the back of DeSoto's shirt.
Visible crew/equipment: When DeSoto and Gage are trying to rescue the unconscious boy stuck in the tree, Gage drills a hole in the tree, and when he reaches down to the oxygen tank and then places the tube in the hole, the outlines of both the mic transmitter and wire are visible on Gage's shirt.
Audio problem: When Squad 51 is dispatched to the hotel fire, Roy's holding the bullhorn in one hand to instruct everyone, and the HT in his other hand. After Johnny catches the baby, just before Truck 8 rolls in, when Roy says over the HT, "All right, set up the Truck...," he moves his hand with the HT away from his face and directs Truck 8, yet his voice is still booming as if speaking into it.
Other mistake: During the structure fire at the Atlas Hotel, when Roy and John are with the unconscious man being given proper CPR by civilians, it is too painfully apparent that the man giving rescue breaths is just leaning over the man's face, nowhere near the victim's mouth, particularly after Marco and Chet drop off the stokes.
Continuity mistake: When Squad 51 and then Engine 51 are dispatched to the hotel fire, before going in Johnny's SCBA cylinder has a large arrow sticker and Roy's has a large red sticker, but once inside Roy's air cylinder goes back and forth from having an arrow sticker to the red sticker. Then in a few moments, when Marco and Chet go in with the stokes, both of their air cylinders are tall, flat-top and devoid of stickers, but inside their SCBA cylinders are short, round-top and keep switching from having either an arrow or large red stickers.
Other mistake: When Brackett's on the line with Johnny, who's with the quarterback on the field, Brackett has the third button (out of five) pressed to record the conversation on the tape machine. However, in episode 2x5, "Peace Pipe", Brackett presses two buttons - the third and fifth, when Squad 51 is at the scene of the drunk driver's accident, and in 2x10, "Dinner Date", Dixie presses the second button to record, when Squad 51 is with the little girl whose arm is stuck in the pool drain.
Continuity mistake: During the hotel fire, when Chet and Marco carry the gear-filled Stokes basket to the room where DeSoto and Gage are performing CPR, the drug box (black) and Biophone (orange case) reverse their positions in the Stokes basket between shots.
Continuity mistake: After Squad 51 is dispatched to the hotel fire, when Roy shouts to John that the woman is about to drop the baby from the third floor, Roy's standing across the street beside the squad, but in the next shot he's suddenly standing in front of the hotel, right behind John.
Audio problem: When Roy and John are with the unconscious man during the fire at the Atlas Hotel, Chet and Marco bring the stokes and Chet tells them that the fire is getting worse, and when Roy responds, "If we move him now we're gonna lose him," we see that Roy continues talking as Chet listens to him, but we hear nothing.
Answer: I believe you are speaking of the old man, Mr. Wilson. He's played by J. Pat O'Malley.
Bishop73
Correct, it was J. Pat O'Malley...he also played the grandfather with his grandson when their rocket exploded, and also played "Old Bill" in the episode with Ann Prentiss, where Gage saves the little girl from the burning tree house, and her mother falls in love with him.