Good question, I don't remember any mention of it.
My not remembering doesnt mean much, though.
I was listening to a couple old shows I captured back in early 06 or so, and heard them bid farewell to intern Sam on his last day.
I think he said he was going to Rochester for a job, but I'd have to re-listen to verify that.
That made me realize even though I listened to all the shows, I didn't remember when he was an intern, didn't remember that he left, and don't remember when he was hired as staff.
I guess his internship ended, although it seemed like Ant hated that guy for some reason. One of the last appearances that I remember was when Jared seemed to be insinuating that he'd be around after his internship and Ant made it very clear that he wouldn't. (some like, paraphrasing, Don't even think there's any fucking way you'll get a job here) He's apparently a friend of Sam, so he'll probably make another appearance sometime, either on O&A or Than and Sam.