Audio problem: During the opening credits no one moves their mouth when they notice Superman and say "it's a bird...it's a plane..."
The Addams Family Meets the Undercover Man - S1-E16
Audio problem: Ted Cassidy (Lurch) was an accomplished organist. However, when he "played" the Harpsichord, he was only miming the actions. When Lurch is playing while Gomez and Morticia are fencing the music doesn't match the movements of his hands.
Herman, the Master Spy - S2-E2
Audio problem: Eddie urges Grandpa to get going, when he replies, his mouth doesn't match the words.
Audio problem: In the park where Bobby is face to face with Chickiebutt and his Acme Mega-Beak, Bobby says, "He's wearing the Acme Mega-Beak over here" but his mouth makes no movement as he talks.
The Two-Hundred-Mile-an-Hour Fastball - S2-E1
Audio problem: When Deborah gets off the phone, she tells Ralph that if they make the deal they can announce it on the Mike Douglas Show, but the problem is each time we hear Ralph say the name "Mike Douglas" we see his mouth actually say "Merv Griffin." (00:13:30)
The Creepy Heap from the Deep - S2-E8
Audio problem: When speaking about the hidden beauty parlor in the submarine Velma's voice comes from Daphne's mouth briefly.
Neogenic Nightmare Chapter 4: The Mutant Agenda - S2-E4
Audio problem: When Hobgoblin says "I don't want to hurt him," his mouth stays open at the end of the line. It's not possible to say "him" without pressing your lips together. (00:17:40)
Audio problem: During the opening credits, the sound effect of the ringing telephone continues to play after Donna Reed has picked up the receiver and is talking on the phone. (00:00:03 - 00:00:30)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Thomson says "I'd better go investigate" and Thompson says "We'd better go investigate" neither of their mouths move. (00:03:50)
Audio problem: In "The Robot", Gumball whimpers while his mouth is open. He whimpers again, and this whimper sounds like the first one, except his mouth is closed.
Audio problem: When Judy asks "But Grandpa, why didn't you tell us what was going on?" towards the end of the episode, she is speaking with Jane's voice.
The Great Voice Robbery - S1-E3
Audio problem: Several times throughout the episode while the characters are speaking in other people's voices the spoken words don't match the lip movements.
Santa's Little Helper - S1-E10
Audio problem: When Amy is playing the piano with Morgan, the last few notes that they play while the camera is focused on them are out of sync. (00:19:50)
Guilmon Comes Alive - Part 1 - S3-E1
Audio problem: When Jeri starts miming with her sock puppet, it is sometimes out of sync with her voice. It is most noticeable in the part where Takato has detention.
Audio problem: When Brian escapes his room and the headmaster with security is checking the rooms, if you look very carefully while the camera is going to Brian's room, you can see the headmaster hitting the door with his hand out, but the sound sounds like it would if he were hitting it with his fist.
Coup DeVille - S1-E1
Audio problem: When Phil is shaking his leg with Lil, his grunting is out of sync with his lips.
Audio problem: When Rupert Thorne is saying "That file is here all right," his mouth is closed for the first four words. (00:18:10)
The Scary Sky Skeleton - S1-E6
Audio problem: During the gang's ride on a bumpy road Fred warns Shaggy, Scooby, and Scrappy about some more bumps coming up. He's interrupted when they hit the bumps, then the word "bumps" comes out of Scooby's mouth.
Arthur, the Invisible Bear - S2-E4
Audio problem: When the station wagon pulls into the mountain clearing there is no movement with the trees indicating they are on a sound studio, as some of the dialogue is acoustic. (00:24:00 - 00:24:30)
Doug Takes the Case / Doug's Secret Song - S2-E1
Audio problem: Around 3 and a half minutes into the episode, Doug, as the Chameleon, says he has a good idea as to who would've taken BeeBe's radio. The end of this sentence is very unnaturally pitched up.