UKTV History, Saturday 00:00-00:30

"Beck

Modern explorer Nicholas Crane travels across eight maps that changed
the face of Britain in a series of geographical challenges through some
of today's wildest landscapes, telling the story of British mapmaking
from the time of Chaucer through to the current generation of
cyber-mappers. Inspired by a circuit board diagram, Harry Beck designed
the London Underground Map, which has become an icon of London."

This was on last night, and I caught the last 10 minutes of it. Didn't
seem too bad.