For kids of the ’60s, it was a thrilling weekly ride and for adults revisiting it later, it became a time capsule of an era when television dared to mix earnest family drama with outlandish spectacle.

When it comes to the sci-fi genre, one undeniable gift that the 1960s gave to pop culture was, of course, the original Star Trek in America and, through the BBC in England, Doctor Who. At the same ...