CBS once hated "A Charlie Brown Christmas" & its Guaraldi soundtrack

Surprising, huh, given that both the cartoon special and its jazz soundtrack have become holiday traditions. But back in 1965 when "A Charlie Brown Christmas" first aired, CBS hated the jazz and wanted adult actors, not real children, to do the voices. And get this, they thought materialism and faith were inappropriate topics for children! Bizarre.

(Trivia question: what instrument made the "wah wah" adult speech?)

Check out the full NPR story for more, including soundclips and interviews.