This week: one more mid-winter repeat before we return to live broadcasts, featuring two January shows from the Fitzgerald Theater in Saint Paul, Minnesota and a few visits from Our Man in Nashville, Brad Paisley. The first Fitz broadcast, from 2012, finds Mr. Paisley singing "This is Country Music" and answering Guy Noir's ad for a new roommate; and men's vocal ensemble Cantus performing "There's a Meetin' Here" and delivering a message from Irish Breeze Mouthwash. The second, an edition from just last year, includes the host singing "The Ballad of Peanut Butter" with Richard Kriehn and Chris Siebold and the "Barcarolle" from Offenbach's Tales of Hoffmann. Plus: a word about the geology of Nashville from 2014. In Lake Wobegon, Senator K. Thorvaldson finally heads south for the winter.