Into the Unknown: The Making of 'Underworld'

A decent effort this, a really interesting look at the making of one of the lesser regarded stories "Underworld". A story with a good first episode which degenerates rapidly.

The documentary looks at the budgetary and production issues surrounding the story presenting them in a way that is interesting and engaging without dumbing them down.

At the time the BBC was, like the country, suffering from rampant inflation and budgetary issues. Whereas previous seasons had been allowed to go over budget that was not allowed by the time Season 15 was in production.

All in all a good effort.