Complex sentence: On April 4,1983, the station changed its call sign to KGLS, on January 9,1998, to KDGB, and on March 17,2003, to the current KHMY.
Split into simpler sentences: On April 4,1983, the station changed its call sign to KGLS, and on January 9,1998, to KDGB. On March 17,2003, to the current KHMY.