to see which one would get most viewers and be most popular to replace Goldenballs?
The big dramatic ending of Goldenballs was taken from Shafted, wasn't it (unless they nicked it from elsewhere before that)? Maybe it's a generic gameshow function, as they also did it on The Bank Job.
And I was always irrationally irritated where it was taken as the default that the two finalists would share the prize unless somebody stole, but Jasper would always say they'd stolen ALL of it. If the jackpot was £20,000 and somebody stole whilst the other one split, the former had surely only stolen £10,000, on top of what was already 'rightfully' theirs, hadn't they?!
I wonder if Shafted would have had more success if it had had a less disagreeable and oleaginous host than Kilroy. Then again, I really liked The Colour Of Money (aka Highly-Strung People Shouting At Cashpoints) - and Chris Tarrant was a safe pair of hands to present it - but that got cancelled very quickly indeed.