Beside featuring big and colorful characters, children's shows rely on a catchy songs to draw in viewers. So naturally, there's a lot of work that goes into selecting a tune. While some write their own original music, others often borrow from other sources. In 1976, when Jim Henson and his Muppets landed their own television shows after years of appearing on shows like Sesame Street, the show runners opted to use a song that was relatively popular in the late 60s for their opening sketch - "Mahna Mahna."Daily DotAccording to the popular version of the song's origin story, it