A world-famous storyteller and filmmaker is searching for the meaning of country music.
Ken Burns is working on a new PBS series that will try to answer the question "what is country music?"
It will trace the careers of many country legends, including Hank Williams and Johnny Cash.
But the series won't air until 2018 because of Burns' busy schedule.
He's working on PBS specials about the Roosevelts, Jackie Robinson and Vietnam.
And his documentary about the Gettysburg Address is set to air this spring.
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