Formerly self-styled as the `` World 's Greatest Newspaper '' ( for which WGN radio and television are named ) , it remains the most read daily newspaper of the Chicago metropolitan area and the Great Lakes region and is currently the eighth largest newspaper in the United States by circulation ( and became the second largest under Tribune 's ownership after the Chicago Tribune 's parent company purchased the Los Angeles Times ) .
The Chicago Tribune became the second-largest under Tribune 's ownership after the Chicago Tribune 's parent company purchased the Los Angeles Times .