Billy:
Sounds like an interesting program and good heads-up but be advised that PBS stations don’t follow a rigid network format like commercial stations so it probably was not on most Forum reader’s local PBS station at the same time.
Doing a search on our local PBS station’s website, its not even listed nor is it listed on our Direct TV program guide, at least not under that name. But our PBS station never seems to have any railroad-related shows as they didn’t even carry Tracks Ahead when that was on many other PBS stations.
It’s also not listed for either of two other independent public broadcasting stations available on our Direct TV service.
Another Billy (but most call me "Bill" these days)