Way back when, it was mentioned on this very forum that an episode of Forensic Files, dealing with the 1993 Sunset Limited wreck, featured a re-enactment using a Williams O-gauge Amtrak consist as a stand-in for CGI effects. I've spent quite a bit of time, on and off looking for that particular episode (I've seen all the other documentaries dealing with it). Last night for some reason, I went looking for it again, and this time, I found it:
Now, the model doesn't play a major role in this episode, but you can clearly see three-rail track in a scene (repeated 2 or 3 times) where the end of the train is shown passing a signal, and quite clearly in one shot showing the train approaching the obvious kink in the tracks beyond the miniature Bayou Canot truss span, as well as the center-rail pickups beneath the locomotives as they tumble off the bridge
---PCJ