This week on A Prairie Home Companion, while the cast and crew are off packing their steamer trunks for the remainder of our live broadcast season, we'll take time to revisit two shows we did from Tanglewood in Lenox, Massachusetts. Steve Martin endures a few banjo jokes and joins The Steep Canyon Rangers, Martin Sheen appears as Jimmy Flannigan, concert pianist, in an episode of Guy Noir, and Heather Masse sings her "Bird Song." Plus, Arlo Guthrie enforces his "No Singing Along" rule in The Lives of the Cowboys, Hilary Thavis sings the "Facebook Blues" and Lake Wobegon is a-buzz with stories of the miracles of Pastor Liz.