REILLY: It’s not a hard sell once people see the show, but there’s so much stuff out there that it’s a challenge to get people to notice it. The thing is, I could go on big, mainstream talk shows, but part of me feels like most people are not even gonna want to see the show. [laughs] But, we’re trying to reach everyone who would want to see it, which is people who are into weirder stuff, but that’s a lot of people. I just remember when I was a kid and I saw Monty Python for the first time. Monty Python was not for everyone, but for the people that loved it, it spread like wildfire. So, we’re trying to spread the wildfire for Brule.

FORTUNE: Can you tell me about the origin of Steve Brule?

REILLY: He is a spontaneous creation. The whole show is improvised. The character is improvised. It’s a manifestation of freedom basically. I met Tim and Eric when they were doing Tom Goes to the Mayor, and I did a voice on that. Then they said, “We’ve got a new show we’re going to be doing called Awesome Show. Do you want to do something on it?” And I was like “Yeah! I’ll just come in and start doing something on the green screen, and that’ll be it. They had those characters Jan and Wayne Skylar on Tom Goes to the Mayor and it just struck me as really funny; a married news team. So I said “I really love the married news team, why don’t I do something in their world for the new show?” And they were like “Great!” We just started filming it, kept doing it, and it kept being fun. The character has kind of transformed over the years and now here we are. Season Three.

FORTUNE: With Check It Out, are there a lot of botched takes? How do you know when you’ve nailed it?

REILLY: I don’t know, man. To tell you the truth, I think that kind of spoils the fun. One of the beautiful things about the show is that it’s this unbelievable mystery that it even exists. [laughs] Like, how could someone let us do this? The fact that it’s as weird and disjointed as it is, it’s kind of a beautiful mystery. I’m hesitant to talk about it, but I will say that we shoot a lot. We shoot enough footage for 30-minute shows, and the shows are 11 minutes. It’s a very concentrated stew. The show is almost all improvised, other than the conceptual things that we come up with for what the show is about. It’s improvised when I interview the people as well, because they are real people. They’re not actors playing doctors and astronomers. They’re people who really do those jobs so they come in, and a lot of them are not that familiar with the show. They might have heard of me as an actor, and they’re like “Yeah, I’ll come on and talk about child psychology!”