The MetroTech-Chicago Corporation was a television company before it was sold to CBS. Their facilites were headquartered in the Merchandise Mart for WMAQ-TV in Chicago. It was headquartered in Suite 1450. In 1930, NBC took over the now-defunct May Broadcasting Company. From 1912 to 1990, May Broadcasting Company was taken over by CBS and was broken up with the now-defunct company called Gulf+Western. In 1932, MetroTech-Chicago Corporation sold $800 million dollars when Miller's Broadcasting Company (1919–1997) was eliminated. There were seven television stations: