Garrison Keillor's Radio ShowSeries 6Episode 7BBC Radio 4 Extra Duration: 1 hourFirst broadcast: Fri 7th Jan 2011, 14:00 on BBC Radio 7Latest broadcast: Sun 6th Jan 2013, 01:00 on BBC Radio 4 ExtraFrom San Francisco - the American funny man welcomes opera tenor Raúl Melo and bluegrass singer Sara Watkins. From 2010.GenresComedySatireEntertainmentVariety ShowsComedyMusicBrandGarrison Keillor's Radio ShowSeriesGarrison Keillor's Radio Show: Series 6 Source: BBC Online