Jeopardy! Season 30 Show #6836, Battle of the Decades semifinal game 1. Season 30, episode 171 Show #6836, Battle of the Decades semifinal game 1. May 12, 2014 Today’s Contestants: Chuck Forrest vs. Russ Schumacher vs. Ken Jennings Previous episode Show #6835, Battle of the Decades quarterfinal game 5. Next episode Show #6837, Battle of the Decades semifinal game 2.