Buffy The Vampire Slayer ( 1997 )

Revealing mistake: When Buffy, Spike, Andrew and Robin go to the high school and find it decimated, Buffy is thrown to the ground and attacked with a hockey stick. On the second swing, a sound effect is heard and Buffy falls over. But the hockey stick never makes contact with her.

Continuity mistake: In the scene where Xander and Anya have had their "one more time" and are lying in the cellar bed talking, the shot is on Xander and he is speaking. When he finishes speaking Anya starts, but the camera stays focussed on him, however, you can see part of Anya's face in the shot and her mouth is not moving despite the fact she is talking.

Visible crew/equipment: During Andrew's fantasy of him, Warren and Jonathan being Gods, something dark is reflected in of the piles of gold. Possibly a camera or camera crew.

Audio problem: After Anya and Xander sleep together again, Anya says "I think, maybe we're really over. Which - it's good, right? I mean, now we can move on." When she says "Which - it's good", her lips don't match what she's saying.

Continuity mistake: There is a shot where a girl is turning invisible, and when the camera switches to Buffy slapping her, she is fully visible, until it turns back and she is slowly becoming visible again.

Lies My Parents Told Me - S7-E17

Continuity mistake: After Spike finishes reading his poem to his mother, the piece of paper that it's written on disappears from his hands between shots. We never hear or see him put it in his pocket and he doesn't move to put it down on the table beside him.

Lies My Parents Told Me - S7-E17

Revealing mistake: When Spike tells his mother that he's become a vampire, she asks him if he's drunk. He responds with "Little bit." Just after he says this, someone can be heard coughing off-camera. It could be his mother because she isn't supposed to be well, but it seems odd that the camera wouldn't be on her during this. And a cough wouldn't really be necessary for the scene.

Lies My Parents Told Me - S7-E17

Other mistake: Robin uses the song that Spike's mother sang to him to provoke him into attacking him. The song is played on his computer through Apple's media program "iTunes". He clicks his computer's mouse to start the song, but when we see the monitor the cursor isn't placed on the Play button. Robin doesn't jostle the mouse when he presses it, it remains completely still on the desk. And the only way to play a song through iTunes using a single mouse-click is by clicking on the Play button.

Dirty Girls - S7-E18

Revealing mistake: In the opening scene, where Caleb picks up the potential slayer in his truck, there is a brief shot of the two from the hood that pans slightly to the right. In doing so it reveals the edge of a screen showing a fence and trees passing by, revealing that the car is in fact stationary and in a studio. (00:02:40)

Continuity mistake: During Anya's pep talk to the Potentials, Andrew draws crude illustrations to visualize what she is saying. One the second page that uses to draw a picture of the sun, the top of the previous page that's folded over the back of the board changes from being folded straight to folded at an angle between shots.

Revealing mistake: When we see Spike and Andrew on Spike's motorcycle talking about Onion Blossoms, a filming light is reflected in Andrew's helmet.

Continuity mistake: In the episode 'Empty Places' when Xander is returning from hospital Kennedy is standing beside the couch to greet him and Willow. When Xander sits down she is sitting on the couch, but she wasn't out of shot long enough to have gotten there.

Shay

Visible crew/equipment: When Dawn and the Potentials try to get past one of the police officers at The Bronze, Kennedy says that he'll have to shoot them all to stop them. As he responds with "It doesn't really bother me", the shadow of a boom mic can be seen on the wall behind him in the top right hand corner of the screen.

Visible crew/equipment: After Buffy has spoken with Clem and is walking down the road, you can see the reflection of a camera in the back of a green SUV.

Continuity mistake: In the previous episode, Empty Places, Kennedy had a cut across her nose and two more between her eyebrows in the last scene. In the first scene of this episode, which takes place a few minutes later, the cuts are completely gone.

Continuity mistake: This episode takes up exactly where the previous one (Empty Places) left off. Anya now has curly hair, but she had straight hair at the end of Empty Places.

Revealing mistake: When Giles slashes the Bringer's neck in the basement, you can tell that there is no entry wound and that the fake blood was merely applied to the actor's neck to give the impression of it being slashed.

Continuity mistake: Anya's hair changes from straight in the previous episode to curled in this one, even though it is set directly after.

End Of Days - S7-E21

Continuity mistake: Towards the end of the episode whilst Buffy is fighting Caleb with the scythe, right after he says to her, "You're not slipping out of this fight, girl. Can't you see? You can't stop me. I can just keep going back for more. It's like being reborn," and throws her into a wall, the position of the scythe changes constantly between shots.