It was his dream job, but after six months at the helm of 'The Tonight Show,' NBC squeezed Conan O'Brien out, and in his first interview the talk host says that the turmoil was much like an unexpected divorce. "I went through some stuff," O'Brien told '60 Minutes' on Sunday. "I got very depressed at times. It was like a marriage breaking up suddenly, violently, quickly. And I was just trying to figure out what happened."