Continuity mistake: In many different episodes, there is a ball ornament on the outside deck railing that appears and disappears randomly, almost as if it were completely loose all the time.
Continuity mistake: When anyone goes to Alan's room in Charlie's house, they always exit/enter from the left of the room entrance (when they exit the go left and up the hall then make another left). This doesn't match the floor plan of the beach house though, as the living room has been shown to be more straight out of the room.
Answer: That would be "Corey's Been Dead For an Hour" in season 4, episode 9.
Super Grover ★