| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In 1955 physicists Owen Chamberlain & Emilio Segre discovered the antiproton, which has this kind of charge | negative | $1,000 | J | SCIENCE & NATURE | 2008-06-27 | #5495 | |
| In 1955 physicists Owen Chamberlain & Emilio Segre discovered the antiproton, which has this kind of charge | negative | $400 | DJ | SCIENCE & NATURE | 2001-09-21 | #3920 |