Wow, I've found this very interesting.
As a former resident, I've passed a lot of these landmarks without even noticing their railway heritage, for example the crane at green ayre (I thought that was from the old port days) and the Lancaster carriage works. I also didn't realise my ex uni owned the former Halton station, or indeed that any of it was still standing.
I particularly like the bit at the end about Yorkie House
One question, why were New Zealand sidings called New Zealand sidings?
I echo the previous comments that this is very well filmed and put together, well done and please post the next episode!
Edit: Ah I've always wondered about that signal box too!