I read in an interview with James Graham, the writer of "Quiz", that Chris Tarrant had told him WWTBAM pioneered the "delayed reveal" and he was really proud of it.
Hmm ...
At least that delay was filled with CT wittering, judging by "Quiz", and I can see it was appropriate for the format as the sums of money got bigger.
However, now it's evolved into the stupid, looong, silent-except-for-pseudo-heartbeats wait on shows like "Strictly" or "Masterchef". I hate it!
And DH hates it even more because he's got to listen to me muttering, "Having trouble reading, are you? Got a splinter in your index finger perhaps? Not sure if that's a curly cuh or a kicking kuh..." or "Forgotten what you decided just five minutes ago, John?" etc during it.
Apparently CT said he wished they'd patented the delayed reveal. Not sure how possible it would have been, but I bloody wish they'd tried.