The Suite Life of Zack & Cody (2005)

Season 1: Episode 18

After getting bad grades on his report card, Zack decides that he needs a way to get good grades without having to study. When Bob, a boy with Dyslexia, shows up in his class, Zack decides that he can pretend to have dyslexia so he can have more time on both tests and reading. Meanwhile, London beats Maddie at chess, and soon Maddie becomes obsessed at beating London at chess.