Austin City Limits in October will be designated an historic rock and roll landmark site by the Rock and Roll Hall of Fame and Museum. Rock Hall President and CEO Terry Stewart and ACL Executive Producer Terry Lickona made the announcement today at the KLRU-TV studio, home of the series. “Austin City Limits represents one of the most unique archives of modern American music,” Stewart said. The Rock Hall will unveil a historic marker Oct. 1 to celebrate the premiere of the 35th season of ACL on PBS. The Rock Hall’s Landmark Series designates historic rock and roll landmarks around the United States that are essential to tell the story of rock and roll music.