It's on BBC iPlayer - https://www.bbc.co.uk/iplayer/episode/m001n327/crashed-800m-...
Unfortunately BBC iPlayer is blocked in a number of regions. However, the doc appears to be available on youtube: https://www.youtube.com/watch?v=cXJmD2XIZfQ .
alt Hacker News
Unfortunately BBC iPlayer is blocked in a number of regions. However, the doc appears to be available on youtube: https://www.youtube.com/watch?v=cXJmD2XIZfQ .