My Favorite Martian (1963)

S3E29 Horse and Buggy Martin

Title: Martin's Racing Spirit Plot: After being bitten by a mosquito, Martin begins to exhibit the wild behavior of a racehorse. His friends notice his sudden burst of energy and competitive nature, leading to a series of hilarious misunderstandings. As he gallops through town, they try to figure out how to help him return to his usual self before he gets into too much trouble. With their support, Martin learns to channel his newfound vigor in a more constructive way, ultimately discovering the fun in friendly competition.