Audio problem: When Gaby's charity modelling event takes place and Susan, after being roughed up by John Rolland's mother after mistakenly accusing her of sleeping with her son, Tom starts talking but you can see him in the left corner of the scene without his mouth moving at all.
Continuity mistake: Season 3 Episode 20: When the boy paints "witch" on Mrs. McCluskey's front door, he holds the container in his left hand and the brush in his right. But when Karen gets out and he runs away with the other kids, the two items switch positions.
Continuity mistake: Season 3, Episode 6: "Sweetheart, I Have to Confess" - When Gabrielle suggests that her and Carlos don't go through with their divorce, her head is resting on Carlos' chest. But in the next shot, it isn't.
Visible crew/equipment: Season 3, Episode 12: "Not While I'm Around" - When Edie is talking to Julie and Austin about their sex life, the pole of a boom mic can be seen reflected in the window behind Edie.
Continuity mistake: Season 3 Episode 5: During the dinner scene at the Van der Kamp's home, Danielle throws her plate against a wall, but when they pan back to her, the plate is still on the dinner table.
Continuity mistake: Season 3 Episode 4: When we see a close up of Orson making a cup of Cappuccino, you can see the cup is filled with steamed-milk foam, but as the scene changes there is less foam in the cup than there was in the previous shot.
Continuity mistake: Season 4, Episode 15: "Mother Said" - When Tom tells Lynette that Kayla is frightened of her because she hit her, the bedroom door behind him closes slightly between shots.
Continuity mistake: Season 4, Episode 5: "Art Isn't Easy" - After Gabby throws John out of the hotel room, she locks the door. But when Carlos leaves the room, he opens the door without having to unlock it.
Audio problem: Season 6 Episode 17: When Gaby sees Paulina Poriskova in the restaurant, she puts out her arms and says, "Give me a hug!" but her lips barely move.
Answer: Kayla was sent away in episode 16 (The Gun Song) in season 4, after falsely accusing Lynette of child abuse. She now lives with her grandparents - probably Nora's parents.