Get ready for a double whammy.
In "The Big Prank" (episode 401B), T.J. tries to prank King Bob so he can win the king's old title of Prankster Prince. Then, in "The Madness of King Bob" (episode 405A), seemingly continuing from the preceding episode, King Bob becomes obsessed with pulling a prank on T.J.
Note: Recess is copyright of Paul Germain, Joe Ansolabehere and The Walt Disney Company.