It's a load of old gameshows put together in a way that you can play along. Countdown's on there, although it's pretty shoddy IMO, and the dictionary is way off and the letters selections are 9 times out of 10 dreadful, but Millionaire and Bullseye are pretty nicely done.
![Smile :)](./images/smilies/icon_e_smile.gif)
It even has those ad breaks popping in at key moments, like when you're about to (dare I say) open a 'key' box on Deal or No Deal.
Loading times are a bit of an issue... and it always crashes with IE, but that might just be down to my relatively slow connection. But if you're a fan of lots of gameshows like myself this is definitely worth a look.