This series is legendary in Canadian Science Fiction (yes, there is such a thing) as a potential lost. As a Canadian watching it there is a certain bitter sweetness. When you compare it to series at the time like Dr. Who and (yes) Star Trek it had production values, as good as, and in some cases better, than those legendary series.
After the first few episodes, you start seeing how the private producers of the series "mickey moused" on the already slim budget. It was a pity that writer Harlan Ellison withdrew from the series in disgust, insisting that his pseudonym Cordwainer Bird be used, but I can't blame him. His talents would later be put to better use on the series Babylon 5.
That said, it was a good piece of science fiction. It also featured some internationally known Canadian actors, Barry Morse & John Colicos. It also featured actors known only within Canada. This is decent Science Fiction for the time when it was produced, particularly the early episodes.