I've just watched it and, to be fair to Michael Portillo*, it is really a travel programme on a railway theme, rather than specifically a railway programme - not too bad, really.
*If you had told me twenty years ago that I would ever write that phrase, then I would have had you certified. It is to his credit that someone who was one of the most obnoxious people in British politics has pretty well redeemed himself over the years.
Ballybrophy on Thursday - I may still find him guilty, if he doesn't do that right.