it features the end of steam
the first introduction of the new Diesel trains
the beeching act

A few boring bits have been cut out

weird unmentioned stuff
how the pacers / railbuses saved alot of routes from closure
how there was at one point a train car type thing that could be driven by a car mounted on top
how alot of stations were modernised
how trains were modernised to include brand new electronics and features that are still in alot of trains today