Jeopardy! Season 23 Show #5226: 2007 College Championship – Semifinal 1 Season 23, episode 171 Show #5226: 2007 College Championship – Semifinal 1 May 7, 2007 Today’s contestants: Hayley Clatterbuck, Alice Luo, and Cliff Galiher. Previous episode Show #5225: 2007 College Championship – Quarterfinal 5 Next episode Show #5227: 2007 College Championship – Semifinal 2