c4countdown

Here's an enigma for you

Why is Countdown still going when other quiz show bit the dust years ago

Take the likes of

Crosswits
Chain Letters
All Clued Up
Lingo
Concentration
First Letter First
Going For Gold
Four Square
Definition
Everybodys Equal
Jeopardy!
Masterteam
Odd One Out
The Pyramid Game

I could go on, but.............

Really though all those quiz games came and went, and yet Countdown is the only one of the genre that has stayed, but why?????