Part 1 of The Mentalist season finale an it turned out to be a very good episode. We had a lot of drama, but it was clearly the build-up to the second half where a lot would be revealed.
The Mentalist's main problem is that five or six minutes in they already have you disinterested on occasion. That was not the case today. Not only was the case engaging, but they made it clear we are going to learn about Red John. It seems like this show could just say the words Red John and you go from that disinterested phase to being interested.
A good build-up and a good hour for this season finale, but it is clear part two will be the great part.