I was never aware of the TV series; however, Jenny Agutter remains even more memorable after seeing the TV photos.
IIRC, she was in the Capt America (Part 2) movie, too.
I remember watching it, but I remember nothing of it. In those days it was hard to get good science fiction. I have a friend who said at the time, "We were so desperate for science fiction that we were willing to accept really bad science fiction."