The Chicago Tribune is a major daily newspaper based in Chicago, Illinois, and the flagship publication of the Tribune Company. Formerly self-styled as the 'World's Greatest Newspaper' (for which WGN radio and television is 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 America by circulation (and the second largest under Tribune's ownership behind Los Angeles Times). Traditionally published as a broadsheet, on January 13, 2009, the Tribune announced it would continue publishing as a broadsheet for home delivery, but would publish in tabloid format for newsstand, news box, and commuter station sales. Registration not required.