This is the original version (VHS) of this railway classic which includes the voice over. There is only one other video that I've found on KZread of this but is without the narration so here you are.
Info on the back of the VHS case:
The Great Western Experience is a rather special video cassette, for the dedicated enthusiast and for anyone with an affection for the old steam railway. It's for the first time, a professional broadcast production team has set out to recreate the reality of the Great Western Railway in its heyday, shot on the most modern and sophisticated equipment and to the highest technical standards. Although the material is specially recorded today, it still provides a view of railway working as it really was, which is difficult to see on the visit to even the best of the preserved railways. There is no superficial television treatment, as the objective throughout has been to recapture all the smallest details of the often forgotten aspects of a way of life which has been so recently lost but which reawakens so many happy memories: everything from branch line goods to main-line expresses, from loco sheds to shunting yards, from signal boxes to coaling stages, from token-exchanges to turntables....it's all here, so take your seat for an hour of the colours, the sites and the sounds that go to make up - The Great Western Experience.
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Originally produced by: NTV Entertainment LTD