You missed episode 1 with a cameraman doing us a solid by concentrating on Charlotte Church during the first task…
It’s an amazing program for examining psychology, especially as you know who’s on what side. With the celebrity one you know their personality already and can see how they might be acting (Alan being himself was ironically the best cover in the entire game, even when he couldn’t say he was faithful without laughing)
The normal show works differently because you don’t know anyone or their personality, and neither do the other contestants. The series with the 22 year old Army guy was amazing to watch - he had one girl with him all the way through to the final two then threw her under the bus