John Madden
John Earl Madden (April 10, 1936-present) is a former American football player in the National Football League, a former Professional Football head coach with the Oakland Raiders, a football video game magnate and a former color commentator for NFL telecasts. In 2006, he was inducted into the Pro Football Hall of Fame in recognition of his coaching career.
Madden broadcast with Pat Summerall in the 1980s and 1990s, on CBS and later FOX. He was also the last color commentator for ABC's Monday Night Football before it moved to ESPN in 2006.
He last served as a commentator for NBC Sunday Night Football, author, and commercial pitchman for various products and retailers. Madden has served as a spokesman for numerous endorsement deals, including the popular, NFL-branded home video game series that has carried his name since 1988: Madden NFL.
On April 16, 2009, NBC Sports announced Madden was retiring from broadcasting. (via Wikipedia)

