Throughout the 1960s and 1970s, the station was called "W1" (WWUN). It was a Top 40 rock-and-roll station, but it was not as popular as WRBC-AM. The station changed formats to the big-band sound in 1985, later changing the call letters to WYHT-AM (Your Hit Tunes). The hours were expanded to 24 hours a day. John Friskello was the major local announcer. It remained with that format until it changed again in the 1980s. Later, the call letters were changed to WZRX. For a while, it was a blues station, but in 2005 the format turned to all black gospel music as "Glory 1590". The format changed again in 2006 to an all-news, CNN Headline News affiliate.