3x42 - Mr. Bean: The Animated Series

Mr. Bean and the father-and-son compete for the incoming biggest marrow competition. Thanks to the super light lamps Mr. Bean's marrow grows heavier until the father and son decide to sabotage it by putting caterpillars in Bean's marrow. At the competition, they swap their marrow with Bean's while he isn't looking, but they fail to realize that their caterpillars are inside. Bean then convinces the judge that the marrow he's holding is his and wins the trophy.