Audio problem: After Tom Wheeler and his partner Kirk show up to assist with the trapped girl, when it cuts to Roy down in the rescue shaft we see him ask Johnny, "Do you see her yet?" but we don't hear any audio, just before we hear Johnny say, "We're getting close." Additionally, earlier at the start of the little girl's rescue, when Johnny tries to loop the rope around Helena's wrist and it doesn't work, he says,"Damn it," but the subtitles read "Darn it."
Audio problem: When Johnny and Roy send down the boy who was trapped on the crane, once he's carried by Chet and the others, we hear Captain Stanley say, "Alright, let's get him into the Stokes, and get him outta here as fast as we can," but his mouth is not saying those words (though Chet's helmet blocks Cap's mouth for part, it applies to the rest). Additionally, it doesn't make any sense that he would even say that, because they're loading him straight onto the ambulance stretcher, not a Stokes.
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.
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.
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.
Audio problem: After Johnny successfully unlocks the car with the toddler inside, when he and Roy hold him the audio we hear is of the toddler crying, even though in some shots it's obvious that he's not really crying. Additionally, when the toddler was still locked in the car wrapped in a blanket, in the closeup his hair (actually a doll's hair) is much thicker and longer than it is when they get him out.
Audio problem: When Truck 85 raises the aerial ladder so Roy can get to the boy on the ledge, the aerial apparatus operator tells Roy, "DeSoto, up the ladder," and we hear Roy respond, "Okay, Cap." There are two problems here: first, Roy's mouth movements are not in sync with what we hear, and second, Roy is not responding to 85's captain, he's responding to the aerial apparatus operator. The captain is standing on the ground behind Truck 85.
Audio problem: After John starts telling Roy about how he and Barbara went to a movie, when Squad 51 is dispatched to 'man unconscious at Observation Park', we see a closeup of Roy in the squad as he puts the gearshift into drive, and then we hear the audio of the ignition being turned on.
Audio problem: After Johnny gets out of the elevator, Johnny sees a crowd around the treatment room, so Roy tells him that they're interviewing the bank guard who was shot, and when we hear Roy ask, "How'd you make out with the girl from orthopedics," his mouth is saying something different.
Audio problem: In the courtroom, after Roy and John defib the patient who was in full arrest, when John's on the Biophone with Rampart, he says, "We've countershocked 400 watt seconds," but as he continues to say, "Scope now shows...," John's mouth is not in sync with those words.
Audio problem: After the sniper throws down the rifle, we see Captain Stanley start talking to Chet and Marco, though at first we don't hear anything, we then hear, "Put on your air masks, " but that is not Captain Stanley's voice we hear. Oddly enough, to me it sounds like John's voice. Have a listen.
Audio problem: When Vince and Mike pull the tabletop out from under the car, while Roy is under there with Mrs. Merkle, we hear the audio of Roy loudly saying, "I'm telling you right now, we're gonna have to brace this thing well, this thing will...," but what's oddly funny is that the dialogue is dubbed right over Roy saying, "Wait, wait, let me check her over...," which is a neat trick that he can say both lines at the same time.