The Boy Who Wished To Be Little Again

S1 E13: David is jealous of his little sister, who’s getting all his parents’ attention. He asks Santa Claus for a potion to make him little again. Santa won’t hear of the idea. But behind his back, Dudley steals the magic size-changing machine and takes it to David. But they get the doses wrong, and David becomes tiny. Santa has to change size himself to rescue him...