 They remained in use by WGST into the 1970s; starting in 1977, Georgia Tech's FM radio station, WREK, occupied most of the original studios, including one of the two big rooms, until 2004 when WREK moved to the current studios in the Georgia Tech Student Center.Through most of the 1960s, WGST ran a Top 40 radio format, but by the late 1960s it changed to middle of the road music, in an attempt to cut into WSB's audience.In 1971, WGST switched back to Top 40, and was billed simply as "92".