Any of our American chums browsing this very site - and indeed plenty from elsewhere, we imagine - will no doubt be familiar with Jeopardy!, the US quiz show where contestants must respond to general knowledge clues with a question as their answer. If that didn't make much sense, sorry - it's not the easiest format to describe!

Anyway, the show has been running for as long as we can remember with a whopping 8,000+ episodes now under its belt. Aside from the entertainment factor, viewers also enjoy the show as a way of learning cool little bits of trivia. Sadly, though, the showmakers have just made a rather comical error.

You can see it for yourself in the clip below, where show host Alex Trebek presents the following clue:

"The 7 rotatable blocks used in this video game have names like Orange Ricky, Hero & Smashboy"

The contestant gives video game classic Tetris as their answer, which turns out to be 'correct'.

The thing is, though, this is completely incorrect. Back in February, Twitter user @vecchitto shared the following images online, claiming that the original instruction booklet for Tetris revealed the fancy block names. It went viral and was picked up by a number of news outlets, but it was all a trick; a quick look in the real manual reveals that this page never existed and was completely made up as a prank.

The show even posted the clue online, tagging the official Tetris account in for good measure as it brags about its new find. As you can see, the folks at Tetris were a little confused.

At least the contestant got the wrong answer right, though. We guess?

[source twitter.com]