EASY MOLECULAR BIOLOGY air_date 1999-11-05 question 'Jeff was an Allen wrench round Jeopardy! Show_number 4657 category THE SOLAR SYSTEM air_date 2007-09-19 question 'In 1969 Michael & Lou Brock round Double Jeopardy! Show_number 1872 category BALLET air_date 1998-07-17.