The Littles (1983)

S1E6 The Little Winner

Title: The Tiny Champion Plot: Dinky sees a contest in the newspaper for a gas-powered airplane and decides to enter. To his delight, he wins, but he's unable to claim his prize due to his small stature. Undeterred, Dinky sets off for the Midget Models Company in the Big City to retrieve his airplane. Meanwhile, Tom, Lucy, Grandpa, and Henry are on their way to the same location, determined to prevent Dinky from getting there.