Ken Jennings exploded onto the 'Jeopardy!' scene in 2004, when he won an astonishing 74 games in a row, earning more than $2.5 million dollars! Jennings, a software engineer from Utah, had this to say in an interview: ‘I had a sudden wave of euphoria when I realized I got to go home and tell people I won on ‘Jeopardy!’’