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the United States from the 1930s until his death in 1987. He was a pioneer in television commercials with his oddball "Madman" persona—an alter ego who generated publicity with his unusual costumes, his stunts, and his outrageous claims. Muntz also pioneered car stereos by creating the Muntz Stereo-Pak, better known as the 4-track cartridge, a predecessor to the 8-track cartridge developed by Lear Industries. He invented the practice that came to be known as Muntzing (which involved simplifying otherwise complicated electronic devices), produced and marketed the first black-and-white television receivers to sell for less than $100, and created one of the earliest functional