08:50Witness HistoryJeopardy BBC World Service Duration: 10 minutes Tue 1st Jun 2010, 08:50 on BBC World Service OnlineAvailable for over a yearListen nowKen Jennings is the man who won the popular US quiz show Jeopardy more times than anyone else. He tells Witness how it felt during his winning streak.GenresNewsFormatsMagazines & ReviewsBrandWitness History Source: BBC Online