It was one of two shows on the Discovery Channel worth watching (for me), the other being Dirty Jobs... until it got cancelled. I was a little sad about that for a while... until I recently found out about Somebody's Gotta Do It on CNN, so yay!
But I digress.
I suppose it was a matter of time when the show went back to its Adam-and-Jamie-only roots (how many people remembered those days?) and with its irregular scheduling, etc (seriously, when is it actually on?). 12, 13 years is a pretty long time for a show like this (even if you take into account what they say about Adam and Jamie's off-screen relationship).
It might have been a surprise to fans like myself who just found out, but since they (the show) already knew of this beforehand, I presume that they already have a way to bow out in a manner befitting the show.
I am curious to see how they end this.
Goodbye, Mythbusters - you will be missed by this fan.