In this episode, the Twist kids find an old machine in the lighthouse that can duplicate physical objects.
Also in this episode, Lynda and her copy twin "Adnyl" take a train ride.
The locomotive hauling the train was a flat-top T in VR livery, but I was unable to make out the number. The cars were E and/or W type, non air con. There were interior and exterior shots.
One carriage had a kiosk not dissimilar to 80BW, which is disused and stored at Newport. Could this be the car used?
Carriage numbers were never in shot, but there are enough station shots to determine the filming location at least, although I do not know where it is. Keep in mind this was first aired in 1989 though.
So, just out of curiosity, does anyone know what the loco and cars were? and the train station too, and was is a tourist railway?