After Kaiser/Globe took over, the AM side at first broadcast a format with music and local news of interest to listeners in Cambridge and nearby communities, but was not very successful. By 1969, WCAS had flipped to Oldies. This was followed in 1972 by a soft rock format that, by 1973, had evolved into a folk/rock format which, while not enormously successful, gained a devoted following in the Boston area. In 1974 and then again in 1975, WCAS was almost sold to religious broadcasters, but both times, citizens groups intervened and thwarted the sales. The format continued even after Kaiser finally sold the station, in 1976, but ended with a sale of the station in 1981 after the then-owners, Dan Murphy and Mel Stone, were forced to file bankruptcy for WCAS. The rest of the 1980s would see a revolving door of owners, call letters, and formats. In the summer of 1991, Bob Bittner purchased the station, then known as WLVG ("We love God") and programming a Black Gospel format. Bittner changed the format to "Earth Radio" (a blend of contemporary music with environmentally-aware public service spots) under the call letters WWEA.