In the episode "iPromote Techfoots", when Carly, Sam and Freddie are having the first meeting with the Techfoot people, Sam is eating a sanddwich. Look carefully at it every time the camera switches on someone else. Every time it switches back to Sam, the sandwich has different amounts of it gone and what not!!! Like, in the first shot of her, there is a bite out of it, and the next shot it would completely restore itself with no bites taken out of it. The next shot, there would be a bite taken out of it.