Reference brisket Today at 22:45:
(Why don't they have ordinary people on?)
It has to be acknowledged that this is not a quiz show in the proper sense (like, say, "Mastermind" or "Only Connect"), where the viewers are invited to applaud high achievement and give themselves a pat on the back when they get a question correct themselves.
Rather, it's an
entertainment show, and the contestants are chosen primarily on how they are likely to react, and so that the audience can have a smug feeling of superiority.
"The Weakest Link" is very similar. Private Eye magazine has been running a "Dumb Britain" column for ages, and TWL contestants dominate it. However, a reader (who had been through the show's selection process) pointed out a while back that the contestants chosen are often not those who score best in the auditions, but rather tend to be those willing to guess an answer they don't know instead of just saying "pass"...