to CBS Corp. The Infinity name was retained for its radio division. CBS and Viacom would merge in 2000. In December 2005, Infinity Radio officially became CBS Radio in anticipation of the CBS/Viacom split up. On February 2, 2017, CBS Radio announced it would merge with Entercom. The merger was approved on November 9, 2017, and was consummated on November 17. April Fools' jokes WXRT has performed numerous April Fools' Day jokes, dating back to the 1970s. In 1982, the station promoted "Mayor Jane Byrne April Fool Fest" on Navy Pier, promising live performances by multiple artists, some of whom were dead. Hundreds of people showed up to the then derelict and padlocked Navy Pier, believing that the festival was real. In 1998, WXRT stated that it was now a subsidiary of Playboy Enterprises. The station said it was now "True Adult Radio", and that its call sign was changed to WXXXRT. References External links XRT Adult album alternative radio stations in the United States Radio stations established in 1960 1960 establishments in Illinois Audacy, Inc. radio stations