Chris Thile (Photo by Brantley Gutierrez / Facebook)

After 40 years of tales from the fictional town of Lake Wobegon, Garrison Keillor is calling it quits. “Chicago Tonight” talks with Chris Thile about taking over as host of "A Prairie Home Companion," his bands and more. 

A few years ago, Jay Shefsky introduced us to banjo prodigy Noam Pikelny when he had just joined mandolin virtuoso Chris Thile as part of his band, Punch Brothers. Pikelny is now nominated for a Grammy. We take another look at Jay's story.