WJIB is an indirect successor to a previous Boston FM station at 96.9 MHz with the same call sign (now WBQT, owned by Beasley Broadcast Group) which in turn descended from WXHR, one of the first FM stations in the Boston area. Coincidentally, what is now WJIB was once owned by Harvey Radio Laboratories, the same company that owned WXHR/WJIB-FM. The AM station was first known as WTAO, then WXHR, and later as WCAS. In 1967, a year after they were sold to a joint venture of Kaiser Broadcasting and the Boston Globe, WXHR became WCAS while WXHR-FM changed to WJIB, featured the beautiful music format, and became well known for a nautical-themed station identification featuring a buoy bell and a seagull (now used in modified form by WOCN-FM on Cape Cod). WJIB-FM became WCDJ, a smooth jazz station, in 1990, and the call sign WJIB lapsed.