I do feel sorry for people who are caught in the glare of the studio lights, and just go blank - and produce answers which everyone at home knows are ludicrous.
I can imagine it happening to me, because plenty of times on quiz shows, I know the answer, but simply cannot bring it to the front of my mind, and out of my mouth, in good time.
Alternately, watching the Celebrity version over the holidays, I was busy informing the present Mrs Hughes at some volume and with commensurate smugness, that the rap band the contestant was looking for was NWA, only to be corrected by the wonderful Stuart Maconie, who has forgotten more about popular music than I will ever know, confirming that the group was actually Public Enemy.
The embarrassment of the lady contestant was drowned out for me by the shrieking laughter of my wonderful wife who enjoys seeing my excess ego punctured from time to time, as she rightly should.