Thank you! We've had it since we came up with the idea that all the sets for this Winners Circle would be Survivor themed. And we came up with that about midway through creating the last Winners Circle. So I say we came up with it about 15 sets ago.
Just in this Survivor thread. Firstly it would have been impossible to go through 3 Survivor threads and look through every set to compile the list, and secondly this Survivor happened so long after the first two and is so different that we almost count it as a whole new game.