A BBC documentary series in three parts last shown in March 2013 tells the story of how the National Trust and English Heritage came about featuring well known figures such as Simon Thurley (EH), Simon Jenkins (NT), Gavin Stamp, Dan Cruikshank, Candida Lycett Green, and other well known figures shown in documentary footage such as Sir John Betjeman and Nikolaus Pevsner.

It is a fascinating series of which part three is to me the most interesting covering the post-war period and ending with the story of the Euston Arch.

Heritage part one/a>

Heritage part two

Heritage part three

https://www.bbc.co.uk/programmes/p014fxzv