"You know how old I am? I'm so old, I remember when Letterman used to be funny and it was presidents who were serious. That's how old I am."
"I wouldn't totally rule out doing Letterman or the Tonight Show if I had a set that I just happened to write that I thought was funny but was still appropriate for network censors. But I'm not going to go out of my way."
"I've never been a TV junkie. I remember watching Letterman way back when he had a morning show."