Three Coaches & a Bobby - S3-E12
Continuity mistake: The two women near Peggy, who are sitting on the benches in the stands, are seated on the fourth and fifth levels in the wideshots, but in the close-up they're seated on the third and fourth levels.
Revealing mistake: When all the vampires are saying "for the dark", and one gets staked, there's a mark on his shirt where the stake's about to come through before it actually happens. Plus Buffy's hands are in the wrong place for her to have pushed that stake through, as well as there being no stake in her hand when the vampire gets dusted. Not only that, but the mark isn't even close to the vampire's heart to begin with. (00:34:50)
Make Love, Not Warcraft - S10-E8
Continuity mistake: When Liane comes down after Eric says "Bathroom", you can see Cartman, and to the left, Stan. However, when the camera instantly changes to a side view, Stan is no longer there.
Other mistake: When O'Neill first goes to visit Teal'c in his cell the symbol of Apophis on Teal'c's head is upside down.
To Kill a Mocking Alan - S1-E5
Visible crew/equipment: When Alan drives away at the end shouting 'No way you big spastic. You're a mentalist.' the whole crew are reflected in the car windows. (00:27:10)
Continuity mistake: When Stanley is running down the hall and he and the Bug Bomb accidentally cross paths, he swats it out of the air. It hits the ground damaged with one leg breaking off and it lying on its side. A minute later when it boots back up and starts to get up, it's in a different position, with its other legs up in the air now and the broken one changing. Also the design of its head seems to change. (00:33:25 - 00:34:35)
Visible crew/equipment: When Elliot first walks into Maya's office to find her in there with a crying Nina, a boom mic drops into view. (00:12:51)
Opera House Murder Case: File 2 - S1-E22
Other mistake: At the beginning of the episode, the characters are gathered thinking back about part 1 of the case. Amazingly enough, the propmaster's armpit ate the A of his shirt. Now he's not a "BADMAN", he's a "BADMN." (00:02:05)