Fans of Conan O’Brien probably aren’t used to seeing him on air at 7:00 in the evening. They also are probably not used to seeing him speak without a smile on his face.

During his first interview since leaving NBC, O’Brien carefully touches upon his experience at the Peacock network. (He is not legally allowed to disparage them.) He also offers a few words on his predecessor/successor.

“If I had surrendered The Tonight Show and handed it over to somebody publicly and wished them well, uh…and then I would not have come back six months later… But that’s me, you know. Everyone’s got their own, you know, way of doing things,” Conan says in reference to Jay Leno.

So is there a possibility he would have stuck around had his former bosses handled things differently? “It just got to the point where I thought… I think this relationship is gonna be toxic and maybe we just need to go our separate ways. That’s really how it felt to me. I put everything into what I do and when it started to get toxic and I started to feel that I’m not sure these people even really want me here, let’s just .. I can’t do it,” O’Brien states.

Want to know if there’s anything the new TBS employee regrets? Curious to find out if he’s resolved all his issues? Find out when Steve Kroft’s interview with O’Brien airs tomorrow night on 60 Minutes.