Michael Falk vs. Stacy McKnight vs. Peggy Till, show # 4909.

Contestants: Martha McKinney, a pediatrician from Kingston, Ontario, Canada Michael Shirts, a research scientist from New York, New York David Madden, a student originally from Ridgewood, New Jersey (whose 17-day cash winnings total $391,900) David Madden game 18. (Jimmy: We're in Washington, D.C., poking around in the nation's attic.) (Cheryl: Artifacts from the vault of the Smithsonian, next on Jeopardy!)