I've got two of the episodes (shipping and power) but missed two of them (rail and...not sure what the other one was). I would buy the DVD set if I could find them, but even the production company involved doesn't mention the series on their site - and it was so well done!
Any other fellow heritage geeks out there who have a copy of the missing two...?
Take a break...while I take care of your home, your block, your pets, your stock!  PM me...
We did record it and then we watched it and deleted it, because at that stage there were still enough programmes on FTA TV to continually fill up our disk. Electricity - oh, Power. Roads? They did the tunnel through one of the passes down south, tremendous project. It was a fascinating series.