Adam88

I think it was spirited away by Patrick Leigh Fermor.  He used to do that sort of thing.

https://www.youtube.com/channel/UCCQ_GXnO6xKc2fWb4fgkwBw

Here though is a garden railway which runs collectors' items yet operates in a more realistic or credible manner than many fine-scale layouts.  Is it the interpretation and setting which makes the difference?  I doubt that this would this work with contemporary, semi-detailed, RTR stock (often with non-scale wheels, stamped or moulded valve gear, etc).  Where the SDJR 2-8-0 appears on these films, fine model as it is, the spell breaks.

It is interesting to compare the HST photos taken at Paddington with the classic May 1892 views of the last broad gauge Cornishman which appear to have been taken from a similar location.  In 1892 the railway knew how to cater for its main line passengers, much of the BG coaching stock would be relatively new and convertible although it may have ridden less well on the Stephenson gauge.