Bewitched - Season 1 Episode 6
Little Pitchers Have Big Fears

To help a boy named Marshall Burns gain self-confidence, Samantha uses her magic to help him to become a star baseball player. After Darrin dissuades her from using further supernatural help, she instead tries to persuade the boys overprotective mother to support him. Marshall does gain self-confidence and hits the game winning home run. His mother realises that she needs to let him do the things that little boys do.