THE 50TH ANNIVERSARY PRAIRIE HOME COMPANION is a 140-minute show celebrating the Last Live Radio Variety show with Garrison Keillor’s stand-up on the beauty of being 80. Comedy sketches (Guy Noir, Private Eye. The Lives of the Cowboys. Duane’s Mom. Ruth Harrison, Reference Librarian) with the Royal Academy of Radio Acting with sound-effects wizard Fred Newman. An extended commercial for Powdermilk Biscuits on the subject: Cheerfulness Is A Choice. Also a word or two from the American Duct Tape Council, Real Hot Coffee, Guy’s Shoes, and the Ketchup Advisory Board. Features with Rich Dworsky and the Guy’s Hot Shoe Band, rags and stomps and blues. An audience sing-along intermission and the latest News from Lake Wobegon where the women are strong, the men are good-looking, and the children are all above average.