The company was co-founded by Ralph 
						Matthews and Karl Hassel in Chicago, Illinois as Chicago 
						Radio Labs in 1918 as a small producer of amateur radio 
						equipment. The name "Zenith" came from its founders' 
						call sign, 9ZN. They were joined in 1921 by LCDR Eugene 
						F. McDonald, and Zenith Radio Company was formally 
						incorporated in 1923. Zenith introduced the first 
						portable radio in 1924, the first mass-produced AC radio 
						in 1926, and push-button tuning in 1927. It added 
						automobile radios in the 1930s, with its Model 460 
						(bragging it needed no separate generator or battery) 
						selling at $ 59.95. The first Zenith TV set would appear 
						in 1939, with its first commercial sets in 1948. The 
						company would eventually go on to invent such things as 
						the wireless remote control, FM multiplex stereo, 
						high-contrast and  flat-face picture tubes, and the MTS stereo 
				system used on analog television broadcasts in the US and Canada (as 
				opposed to the BBC-developed NICAM digital stereo sound 
						system for analogue TV broadcasts, used in many places 
						around the world.) Zenith was also one of the first companies to 
				introduce a digital HDTV system implementation, parts of which 
				were included in the ATSC standard starting with the 1993 Grand 
				Alliance.
				

