I called harpo's contact line; it was less than useful. I do know that Harpo's sells day-of-event tix at their box office; I don't think they sell advance tix. Seeing as Harpo's capacity is 2,000 people, getting tix on the day of the show shouldn't be a problem. If I find myself at a show there between now and Oct. 2, I'll be sure to ask.