It's in its 3rd or 4th season now, I think. I know that some people disagree with their tactics, but I really like the show's focus on awareness and that they try to bring up situations to make people think about them.
I try to remember that a lot of people own guns but neither train with them nor prepare to use them. Not everyone is like the folks here who dutifully practice regularly ;-)
I don't like that this season has been more focused on knife fighting. I know it's Janich's big thing, but it's not mine. My wife and I have been watching it for a while and she used to like to practice the unarmed techniques that they showed (with me as the attacker).