new FM sister, broadcast from that location from 1966 to 1983. In 1974, National Life and Accident Insurance Company reorganized itself as a holding company, NLT Corporation, with the WSM stations as one of the major subsidiaries. In 1981, the American General Corporation (now part of the American International Group) bought NLT. At one time, American General was the parent company of the Life and Casualty Insurance Company based in Nashville, former owner of WSM-TV rival WLAC-TV (now WTVF), and WLAC-AM-FM, but divested the broadcast properties in 1975, long before the NLT merger. American General was not interested in NLT's non-insurance operations, and sold WSM, Inc. (which included Opryland Hotel, Opryland USA, Ryman Auditorium, The Grand Ole Opry, the fledgling The Nashville Network cable television outlet, WSM-FM, and WSM) to Gaylord Broadcasting Company. WSM-TV, due to FCC ownership limits at the time, was sold instead to Gillett Broadcasting and changed its callsign to WSMV-TV. However, there was still considerable overlap between the stations' on-air personnel for some years after the ownership change. Gaylord would also move the WSM radio stations to new facilities at the Opryland Hotel, departing their shared building on Knob Road, which still houses WSMV today. WSM broadcast in the C-QUAM format of AM stereo, which could be heard over several states at night, from 1982 until 2000. WSM currently operates out of the Gaylord Opryland Resort & Convention Center, and visitors to the hotel may look into the studio 24 hours a day, provided the curtains are open, which they usually are. Following the devastating 2010 Tennessee flood that inundated Gaylord Opryland and the Grand Ole Opry House, the station broadcast from a makeshift studio at its transmitter site for six months, while the Grand Ole Opry rotated between several performance sites, until the buildings at the Opryland complex were repaired. WSM's administrative offices next door to the Grand Ole Opry House were completely destroyed by the flood and later demolished, resulting in the loss of several priceless documents from the station's history. In 2001, management had sought to capitalize on the success of sister station WWTN's sports trappings by converting WSM to an all-sports format. Word was leaked to other media resulting in protests, including longtime Opry personalities and country music singers, outside the station's studios. Management eventually made the decision to keep the station's classic country format. In recent years, the operations have been