Continuity: In the episode "Commerical Break," they start to film the commerical for the first time without London and with Mr. Mosby. London gets upset and sits down on a couch where they are shooting the commerical. She and the couch leave the shot for a second, and London is gone when they show the couch again.

Visible crew/equipment: Episode 1x06 "The Prince and the Plunger", Zack and Cody go to Arwin the first time and get donuts, but when Arwin says it's going to be a steak next time you can see the studio lights reflected in his glasses.

Visible crew/equipment: Episode 1x09 "Band in Boston", the reflection of studio lights are visible on the drums almost every time they are seen during this episode.

Continuity: In episode 1x09 "Band in Boston", Zack puts Cody's whistle in their mate's pudding, but when Cody says "You got pudding on my whistle" and the mate says, "And you got whistle on my pudding," the whistle has disappeared.

Continuity: In the episode 1:05 "Grounded on the 23rd Floor", when Cody falls from the porthole, two glasses are on the floor, but later when they run after the papparazi, the glasses are gone.

Visible crew/equipment: At the beginning of the episode 1x05 "Grounded on the 23rd floor" after the big guy falls over Mr. Moseby and everybody looks at them, look Zack and Cody's helmets: you can see a studio light.

Visible crew/equipment: At the beginning of the episode 1x05 "Grounded on the 23rd Floor", when we hear the classic song, if you look closely at the door windows, you can see a studio light.

Visible crew/equipment: Sometimes when they're at the pool and someone has sunglasses on, you can see the reflection of a studio light.

Continuity: In 2-35, "Book and Birdhouses," in the scene where they are having the finals, the desk placements change around every so often.

Visible crew/equipment: In the episode 1:05 "Grounded on the 23rd Floor", when Maddie gives Zack and Cody the "US People" magazine, you can see studio light on it.

Continuity: In the episode where Max kisses Zack at the basketball game, the twins' mom is sitting in the back and she has her hands down. Irwin then says "Let's kick some" and it cuts to their mom she has her hand on her neck, it then cuts back to the basketball team and she has her hands down by her lap again.

Continuity: In "First Day of High School" when the principle is telling London that she can not build her lounge, the position of her hands change form being on her hips to being in the air.

Revealing: When Arwin tries to use the P.U., when the door is closed, you can plainly see a reflection of Cole Sprouse waiting offstage.

Revealing: In the scene where Arwin admits he cheated on one of Arwin's lines, the guy behind Mom (the guy with the clipboard) silently mouths along with that line.

Audio problem: When Cody orders the Number 8, someone says, "We got a Number 8". But no one's mouth moves.

Revealing: When Maddie and London are pulled off the cart by the horse, you can tell they use dummies. Look at the way their bodies move.