I e-mailed my local PBS affiliate, and I got a reply back. It looks like I won't be able to watch it. The reply I got was that this is aired during one of their pledge marathons, but that most of the stations airing the special are getting the tour and give away tickets to people who pledge money; the guy then said that since the tour is not coming here (which doesn't surprise me since these types of events never come to western New York), they would not be able to capitalize on it to get pledges and thus don't plan to air it. He did say they have the right to air it if the VGL tour ever does come here, but that doesn't seem likely.