[Brekkie]

The UK and US are very different, which shouldn't come as a surprise. There's more of a nerdy, bookworm culture here which doesn't necessarily make for exhilarating TV so intellectual gameshows don't tend to work in the States. An exception to that is Millionaire but that wouldn't have been successful without the amount of money involved whereas here it could have lasted a few series giving away modest prizes.

That is why Jeopardy cuts through in the US in a way it doesn't here.  

Of course there was a pilot commissioned recently with Alison Hammond for a UK revival of Wheel of Fortune - not sure if they got as far as filming the pilot but they're not proceeding with it.