its first broadcast took place on november 24, 1926. the call letters were chosen to contain an acronym for the first owner of the station, the life and casualty insurance company of tennessee. studios were located on the fifth floor of the life and casualty building in downtown nashville. in 1928, it became nashville's cbs radio affiliate, while its main competitor, 650 wsm, was affiliated with nbc, the other major radio network in the early days of broadcasting.