[andrybak]

> I remember watching a design documentary years ago

Was it Map Men? They mention not forcing the London tube map onto the geographical map. It has two parts:

1. "The Tube Map nearly looked very different" https://www.youtube.com/watch?v=cTLCfl01zuE

2. "What went wrong with the Tube Map?" https://www.youtube.com/watch?v=jaEhvWXmLyk

[latexr]

> Was it Map Men?

It was not. I saw it maybe a decade ago and those are a year old. It was also not a YouTube documentary. I might give that one a watch, though.