Beware Greeks Bearing Gifts - S1-E12
Visible crew/equipment: As the people of Troy are about to be attacked by the warriors in the horse, the camera pans up to the side of the wall where Deiphobus is talking with another soldier. You can see a crew member crouching down behind them wearing a white and grey shirt. (00:30:35)
Deliberate mistake: During the civilian sheriff's pursuit of the Navy car, the sheriff is occasionally visible in the passenger seat of his patrol car instead of the driver's seat.
Continuity mistake: During the wedding, there are flashes of the different people from throughout the story. In the one showing Lady Catherine and her daughter, in the first shot, Anne can be seen sitting very close to the arm of the sofa, but in the zoom out, she is further along.
Suggested correction: This is just a distortion of perspective because of two different camera angles. If you look at the pattern on the sofa upholstery you can see she is sitting in the same spot in both shots, midway between two vertical panels with red borders.
Burning Down the House - S9-E19
Visible crew/equipment: During the scene where Mimi has moved into the warehouse, Drew makes a comment about the TV having surround sound - as the camera pans over him you can see a crew member in the background adjusting a light.
Revealing mistake: Right at 40:30, if you look in the top left corner of the LCD screen, you can see a mouse cursor. Six seconds later it starts to move around. It seems like someone noticed and tried to move it out of the scene. (00:40:30)
Continuity mistake: When Donna jumps off the bridge, it's into relatively shallow water under the bridge, and there is land very nearby (at both ends of the bridge). When the camera shows her in the morning, she is suddenly far out to sea in the ocean. (00:01:51 - 00:09:33)