The station has an estimated sign on date of September 23, 1946 as WKAY, the first of two radio stations originally owned by Glasgow Broadcasting, Inc., along with WGGC (95.1 FM) when it signed on in 1961. As one of the first new radio stations to sign on after the second world war,[3] WCLU's original studios were located at 510 Happy Valley Road in Glasgow, which was demolished in November 2014 to make room for a new drug store. The station's original transmitting tower was made entirely of 170 feet (52 m) worth of cast iron oil well casing, due to the unavailability of structural steel during World War II and its immediate aftermath;[3]: 141 a real tower wasn't erected until 1963.[4] After completing that tower in 1963, the station increased their broadcast power to 1,000 watts by day, and 250 watts by night.
In 1971, both WKAY and WGGC went under ownership of the Sadler Family, which had been involved in operating the station since 1948. Shortly before this happened, WKAY switched to a middle-of-the-road format. Around this time, the station upgraded its signal power to 1,000 watts by day and 250 watts by night. WGGC was simulcasting WKAY until sometime in the early 1970s, when the former of which became one of the first country music stations to be broadcast from southern Kentucky.[3]: 141
In 1988, the AM station was purchased by its current owner, Royse Radio, presided by former WCDS employee Henry Royce, who changed the station's call letters to the current WCLU, which stood for Royce's children afterwards. In 1991, WCLU moved into a new facility on West Main Street in downtown Glasgow,[4] with the AM station's transmission tower and WGGC studios remaining at the old studios[3]: 142 ; WGGC would relocate its studios and broadcasting license to Bowling Green in 2000 and 2002, respectively.
Sometime in the mid-2010s, the station launched a low-powered FM translator, W276DO, to make the station's programming available to FM listeners.
Programming format
The station's current oldies format is also accompanied with local talk radio programming, including local newscasts, and local sports coverage. Top-of-hour national newscasts alternate between affiliations with CBS Radio News and ABC News Radio. News updates from the Kentucky News Network are also provided by the station.