An excellent series indeed. The BBC released two VHS tapes covering the series - Part 1 (BBCV 4254) featuring 'The Long Drag', 'The West Highlander' and 'Lines of Industry' and Part 2 (BBCV 4255) containing 'The Holiday Line', 'Steam on the Isle of Man' and 'The Survivors'.
To think that when the 'The Long Drag' programme was made the Settle-Carlisle line was under serious threat of closure. Look at it now, heavy freight traffic, numerous passenger services (albeit most worked by railcars), reopened stations and diversionary traffic off the West Coast Main Line.