It made its debut broadcast on September 14. WLAC was first authorized in November 1926, owned by the Life & Casualty Insurance Co., with its call letters chosen as an acronym of the owner's name. Studios were located on the fifth floor of the Life and Casualty building in downtown Nashville. WLAC initially operated on a timesharing basis with WDAD on 1330 kHz. In mid-1927 Dad's Auto and Life & Casualty formed a partnership for joint operation of their combined stations, as WDAD-WLAC. The following November Life & Casualty purchased WDAD's interest in the combined stations, and announced that, effective November 21, 1927, the "call letters WDAD will be discontinued and the station operated only under the call letters WLAC in the future". The November 30, 1928 issue of the Radio Service Bulletin therefore instructed its readers that, for the current WDAD-WLAC station list entry, to "strike-out call WDAD, as Dad's Auto Accessories (Inc.) is no longer joint licensee". On November 11, 1928, under the provisions of the Federal Radio Commission's General Order 40, WLAC moved to 1490 kHz, operating with 5,000 watts on a timesharing basis with the Waldrum Drug Co.'s WBAW. The next year WBAW's call letters were changed to WTNT, after that station had been taken over by The Tennessean newspaper. In early 1930 WLAC and WTNT were reassigned from 1490 kHz to 1470 kHz. (WCKY, on 1480 kHz in Covington, Kentucky, had been encountering mutual interference over much of Kentucky and Tennessee with WLAC, and was moved to 1490 kHz at the same time). On December 16, 1930 WTNT was taken over by Life & Casualty. The next day WTNT, which previously had been allotted 1/3rd time on the shared frequency, ceased broadcasting, allowing WLAC to again operate a fulltime schedule, and WTNT was subsequently deleted. In 1928, WLAC became Nashville's CBS Radio Network affiliate. Its main competitor, WSM, was affiliated with the NBC Red Network. In the early years of the station, WLAC provided local news, studio-orchestra musical features (accompanied by an in-studio pipe organ), farm reports, and some educational programming. Its main competitor in that era, WSM, became known as the radio station where country music essentially developed and became a national phenomenon. When country music became a big business in the late 1940s, WLAC added early-morning and Saturday-afternoon country shows in an attempt to steal some of WSM's thunder. Otherwise, the station prided