Promotional nights have been a part of baseball games for years, but there will never be anything like what happened at Comiskey Park on July 12, 1979. On that night, a radio promotion led to an on-field storming, a forfeit for the White Sox and a longtime debate on what the night really represented. This is Disco Demolition Night: A promotion featuring popular WLUP disc jockey Steve Dahl and his quest to destroy records featuring disco music — a genre he despised and made fun of on the air during his shows. Josh Harrison stops by after the White Sox...