WBZ-AM (BOSTON, MA)
WBZ is the call sign for an AM radio station in Boston, Massachusetts owned by CBS Radio, itself owned by the CBS Corporation. Originally based in and broadcast from Springfield, Massachusetts, WBZ may be considered the first licensed commercial radio station in the United States. WBZ moved to Boston in 1931 in a swap with a now-defunct synchronous repeater, WBZA. Its studios are in Allston, Boston.