Plot hole: Fletcher and Warren steal what they think is the right paper, so Godber can study it before he sits the exam. They are adamant that he has a very short time to go through it as they have to put it back before anyone misses it. After Godber refuses to cheat by reading it, Fletcher berates him, throws the paper on the cell floor, and storms out. What happened to replacing the stolen exam paper?
Continuity mistake: Interior shots of Ivy's cafe show a window in the back wall of the kitchen, visible through the door to the dining area. Exterior shots of the building show only a plain stone wall where the window should be.
Moving House - S3-E1
Revealing mistake: At the beginning when Frank is directing the vans, we see that one gets its windscreen broken by a ladder from another van. However, the glass breaks just before the ladder touches it.
The Illusion of the Deadly Conglomerate - S1-E18
Continuity mistake: Blake tosses the trick card, and it lands on the lower right side of the target. When Dominick walks over to pull the card free, it has moved itself to the upper left portion of the target. (00:29:20)
The Likely Lads: A Special Christmas Edition - S3-E1
Continuity mistake: When Bob and Thelma are driving home after shopping, the exterior shots show them about to reach the traffic lights, but when the shot switches to inside the car they take longer to reach the lights.
Revealing mistake: 44/34 Nick Newman is hit from behind and knocked unconscious. However, he bows his head and braces for the blow before he is hit. (00:48:00)
Revealing mistake: When Kojak drives to the store where the hostage situation takes place, the side mirror of the interior view does not match the car he arrives in. The footage is also noticeably sped up at the last turn, when he passes by a Delicatessen window and a Rent-a-car sign. (00:09:30)
A Community of Victims - S3-E3
Continuity mistake: Officer Ripley's shoes change from black to white as he chases the ambulance, then back to black.
Beyond the Farthest Star - S1-E1
Continuity mistake: There is an alien in a Starfleet gold shirt sitting next to Sulu. For a second, there is a human in a Starfleet red shirt, then it goes back to the gold shirt alien.