 The new nighttime power of 28 watts allowed WACB to stay on the air 24 hours if they liked, but ownership chose to continue signing off, though at midnight.WACB began broadcasting under their new nighttime power authority in January 1988.Up until July 4, 1990, WACB's format had been relatively consistent for many years; a full-service news and sports formatted station playing adult contemporary and oldies music.