Dave writes:
<<Do viewers at home
get to look at reference material? I assume not,
since it would be trivially easy to stump the
contestant just by turning to any page in the encyclopedia
and giving an insubstantial but identifying
clue.>>
OK.... I should be a little more precise: the
contestants' categories are publicized (on the show, the
Internet, or both) in advance. Which is why there would,
theoretically at least, be time to "work with question
authors." [Of course, it is also interesting to note that
any potential authors would, in theory, have to be
eligible contestants....]