Morgan's distinctive harmonica was heard on countless TV themes, from the rustic 1960s comedies The Beverly Hillbillies and Petticoat Junction to the opening rhythms of Sanford and Son, the harmonica solo in the middle of The Rockford Files, The Dukes of Hazzard, Maverick, Perfect Strangers, and others. He also appeared on The Ed Sullivan Show and The Jimmy Dean Show. He's been heard in episode scores for The Twilight Zone, Buffy the Vampire Slayer (recording his own composition for a street busker), all of the Roots miniseries and specials, Family Guy, and The Simpsons.