in 1989 after operating for 50 years. The Spanish station KLGO assumed the frequency in 1993. Lufkin, Texas The callsign KNOW was also used by an oldies station in Lufkin, Texas, located at 1420 kHz, until it suffered a fire and shut down in 1987. It was owned by Pine Air, Inc. See also KCMP, MPR's eclectic music station KSJN, MPR's classical music station References Mark Durenberger (1999). Early quad-casts and other fun. The Broadcast Archive: War Stories. External links Minnesota Public Radio MPR: KNOW 91.1/KSJN 99.5/KCMP 89.3 Minneapolis/St. Paul Radio stations in Minneapolis–Saint Paul Minnesota Public Radio NPR member stations Radio stations established in 1967