My Best Friend's Mistake - S1-E3
Audio problem: When Dr. Cox is yelling at Dr. Reed and he's saying, "For the love of Aisha," he's mouthing the word God, but "Aisha" which was dubbed over. (01:02:40)
Dibley Live - S2-E2
Audio problem: During the scene where Jim and Owen are trying to bribe the Vicar with chocolates, just after they take them back, you can hear a mysterious voice say "chocolates". The only person who this sounds like is Jim, but in the next shot, his lips aren't moving.
Audio problem: Drake starts playing his electric guitar while Josh is doing his homework. His guitar sounds amplified, even though his guitar isn't plugged into an amp.
The Plague - S2-E6
Audio problem: When Bishop Brennan calls for the first time at the start of the episode, Ted panics and pretends to be French before hanging up the phone. You can still hear Bishop Brennan talking on the other end of the line for a few moments after Ted hangs up, which obviously shouldn't be possible.
Audio problem: When Prue is at the dentist, she grabs a guy and he says, "What, what did I do?" to his girlfriend, but his lips do not move.
Audio problem: Near the end when the family have got back in the car Malcolm says something like "who would have thought a traffic jam could be so cool, we should do this again". Near the end of the sentence we can see Malcolm's mouth and it isn't moving.
Cartman Gets an Anal Probe - S1-E2
Audio problem: After the scene where Mr. Garrison says, "You can say that again, Mr. Hat," Kyle shouts, "Give me back my brother you stupid aliens" in Stan's voice.
Audio problem: In the pub with Andy, when Les is talking about Graham Norton and Les says "Ooooh, Jackie Collins!", his lips have no relation to what he's saying.
Clara's Dirty Little Secret - S1-E2
Audio problem: Season 1 Episode 2: "Clara's Dirty Little Secret". When Princess Clara and her Evil Stepmother make up, the latter thanks Clara before the scene switches to the Confession Room. When she says 'Thank you', her lips do not move.
Audio problem: When Mr. Bean is on the bus and is trying to retrieve the golf ball, he is hitting the ankles of the passengers. When he hits the ankles of the last two women closest to the camera, they go "Ow" yet their mouths don't move. (00:17:15)
The Men That Corrupted Hadleyburg - S2-E18
Audio problem: Final sound edits were incomplete on this episode when star Pete Duel committed suicide, so his dialogue is "looped" by another actor in several places. Though it's an excellent imitation, it is most noticeably not Duel's voice when Heyes and Curry are waiting for Harry in the opening scene, at the campfire with the Tapscotts, and when Harry tells them about the trial's outcome.
Audio problem: In "Silly Love Songs" during the final song You can hear Blaine singing "I can explain." but in a couple of the shots he is lip-syncing to the "I love you". Next shot is he is back to singing his solo part.
Audio problem: Right after Helga is standing behind the "ARNOLD" on the pavement, when she says "Hey Arnold", her lips move as if she's saying it slowly (this is fixed in the 4th season).
The Chain Of Screaming - S3-E15
Audio problem: At the very beginning, after Ted says, "A new car", Lily's lips move, but she doesn't say anything. Obviously her dialogue was cut in post-production. (00:00:10)
Kill Me Now - S1-E3
Audio problem: When Lorelai and Rory are sitting at a table, with Rory looking at herself in a mirror, they talk about Rory's hair. Right after this, Rory asks, "do you want something to drink?" Her mouth doesn't move at all. (00:30:00)
Audio problem: When singing "Goodbye little yellow bird" Emma blows a kiss to Oliver offstage, but she is still singing the song when she is blowing the kiss. Although it's possible she was pretending as it was part of the act, her voice wasn't even muffled by her hand.
Audio problem: When Martin arrives at Guy's flat, the first time Guy slaps him, the sound is a fraction of a second late.
Number One - S1-E7
Audio problem: In the scene where Kim is running across grass-covered Japan to stop Duff Killigan, when she talks her lips don't move along to the words.
Audio problem: Joker's TV debut as an opera singer isn't very convincing. Even through the partially-obscuring clown mask, you can see that his lips aren't moving at all. (00:22:30)