After studying this page and all its glorious things:
https://buildingterror.blogspot.com/
I take back my earlier comment about the TV series being complete fiction.
It seems that other than a slightly embelished storyline involving a very hungry Polar Bear
the level of accuracy they tried to achieve (in the story and the sets) was quite impressive.
I already knew they had built full size ship interiors, but had no idea of the scope of the full scale 1:1 sets they built!