Continuity mistake: When the class is in Arnold's esophagus, Tim says something, then it cuts back to Ms. Frizzle. Arnold is sitting in the back seat of the bus.
The One Where Ross Finds Out - S2-E7
Continuity mistake: When Rachel finds out that Ross and Julie are getting a cat, watch Rachel's neck. When she says "together?" she's not wearing a necklace; cut to Ross and Julie for a fraction of a second, then when it cuts back to Rachel saying "both of you?" she's suddenly wearing a necklace. It then disappears again when she says "isn't that just lovely?" hanging off the side of the tray she's holding. (00:05:15)
Continuity mistake: As Mark futilely pounds on Jodi O'Brien's chest, Carol can be seen in the background, removing her protective glasses with one hand. However, after the Time of Death has been called and they're showing the reactions of everyone present in the room (Susan, Carol, Carter, Lydia, Chen), Carol is seen taking the glasses off again, this time with both hands.
A Race Through Dark Places - S2-E8
Continuity mistake: Before she's succeeded in her effort to move it with telekinesis, Talia's penny reverses itself on the table between takes, changing from tails-up to heads-up.
Big Report - S1-E2
Continuity mistake: Connor (is this cool?) Hammil's shirt is unbuttoned, then buttoned between shots (just as he pushes the woman's head through a pane of glass).
The Puppy Episode (1) - S4-E22
Continuity mistake: In the scene where Ellen goes to Susan's room after Richard makes a pass at her, she has her jacket in her hand when she enters the room. When Ellen leaves the room hurriedly, she leaves without her jacket, but when she is in the hallway about to go back to Richard's room, she has her jacket in her hand.
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: When Spider-Man says "I get the picture, Wolvie," he is shown to be running. When the shot changes, he is walking. (00:04:05)
Behold, a Distant Star - S2-E10
Continuity mistake: When Sue is talking about her father going into hiding, the camera is on the right side of a photo album, showing a newspaper clipping of him being wanted for murder. When the shot changes, the contents of that page are now three different photographs. (00:07:32)
Continuity mistake: When the MODOK E.L.F. is in the fish tank watching Rhodey at his computer, it is located at the bottom of the tank near the sidewall on its right. When the shot changes to over Rhodey's shoulder, the MODOK E.L.F. is now at the top-center area of the tank. (00:05:50)
Continuity mistake: When Gersham runs from the police in the first scene, his vehicle crashes on a rooftop and hits a wall, bouncing off it, turning and stopping parallel to it. He exits the vehicle, at the point where he crashed, and the vehicle is now positioned differently (turned 90 degrees, pointing straight to the wall). (00:04:20)
Who Killed the King of the Country Club? - S2-E11
Continuity mistake: When Burke questions him on the golf course, Conrad Hill is completely in shadow for all the frontal shots, but in full sunlight in the over-the-shoulder reverse angles. (00:14:00)
Coach Fussell's Lament - S2-E5
Continuity mistake: Chairface and Chrome Dome arrive at the Brianchild's house in the same car, but drive off in separate cars.
The Accident - S1-E1
Continuity mistake: In the scene in the kitchen at the beginning of the episode Alex's hair changes multiple times throughout the scene.
Continuity mistake: A whimpering housemaid rushes down the stairway, frightened by an intruder on the second floor. Doctor Watson gallantly charges upstairs to investigate, plunging his left hand into the right side of his jacket to retrieve his trusty Webley revolver as he advances on the camera. However, the shot immediately cuts to Watson withdrawing the revolver with his right hand from the left side of his jacket. (00:29:55)
The Meeting - S1-E1
Continuity mistake: When Lisa and Ray are talking in Lisa's apartment there is a soda bottle on the table. Part way through the scene a cap appears on the bottle and then is gone in the final shot.
Continuity mistake: To beat the traffic, Coop skateboards inside a construction pipe. The pipe is on the back of a truck, so it's not exactly very long, and gets picked up by a crane arm mounted on the truckbed itself. However, Coop takes ages to come out of the pipe, and in the shot from inside the pipe it looks as if is dozens of meters above the street level, which isn't. (00:08:00)
Continuity mistake: In Season 2, Episode 19 ("Checkmate"): Detectives Torres and Moreno respond to a radio call reporting gunfire at 300 East 85th Street, which they acknowledge. We then see the suspect exit the building and escape in a car, and the detectives run unto the same building a few seconds later. The building number however is 237, not 300. (00:33:35)