Prodigy (S02E38)

The Stephens are invited to the Kravitz home to meet Louis Gruber, Gladys' brother. Twenty six years before, at the age of eight, when Louis made his debut as a violinist at Carnegie Hall, his knickers fell down. Since then, Louis has shunned playing in public. Abner claims he is just a moocher. When Louis suddenly begins to play, Samantha and Darrin realize he is a brilliant musician. Samantha arranges for him to play at a hospital benefit. (iTunes)