Heads up: I mentioned upthread that the new series of French Fort Boyard is starting today, and I'd strongly recommend it to people who like Crystal Maze. That starts at 8:00 BST - 5 mins from now. Be prepared to take most of your Saturday, mind, it's usually over two hours! I tend not to find the language barrier to be much of an issue.
Here is a pointer to various means to watch it.
A quick rundown of the format, because there's a lot to it
First of all, there's the cast; the Fort has a lot of characters, there's a lot of worldbuilding around it. There's the host, who's generally pretty much on the side of the players, and the master of the fort, Pere Fouras - played very much as a gamesmaster-style rather than the villainous approach handled by the UK adaptation.
This is last years' format, it *may* have changed:
First up, they have a time limit to collect a number of keys (I think it's currently nine, but it's varied over the series). Usual Crystal Maze style rules; win the game to get the key, lose the game fair enough, and you can get locked in (which in this means you're taken prisoner elsewhere.
Some time during this they'll get sent to the Cage, hosted by Rouge, a run of quick Gladiators-style strength/skill tests against a resident combatant, with a chance to get several quick keys for them.
After this, they'll probably not have nine keys, and they may have some people locked in - so they go and meet Blanche, Rouge's sister; they can risk people for the missing keys with a choice of skill or luck games. That's also an opportunity to free the imprisoned people, again for the same sort of games.
So now they have the keys, they need to try to get clues for the endgame. These are more 'face your fears' types of games; if you think Bushtucker Trials from I'm a Celebrity Get Me Out Of Here, you won't be *too* far out. Win them, get a clueword for the finale.
Finally, they play for more or less time in the endgame. First up is The Great Escape, an assault course for the prisoners to run through - timed, and if they go past the time limit any extra time comes out of their treasure room reward. Then they go to the Council, a number of skill-based one-on-one games, with extra time for a win.
Finally, after all that, you get the treasure room; guess the codeword based on the clues, and use the time remaining on the clock to get coins out of the room.
It's a *lot* of show - the UK adaptation was a much simpler affair, and I think it might be interesting for people to see the original.