Wikipedia
Blindpassasjer
Blindpassasjer (Eng. title: Marco Polo) was a Norwegian science fiction TV-series from 1978. It aired 3 episodes. 'Blindpassasjer' translates to 'Stowaway' in English, although its literal translation is 'Blind Passenger'.
A spaceship has 5 crew members. A biological robot, or 'Biomat', kills one of the crew members and replaces them, but who is it?
Blindpassasjer is noteworthy for being the first science fiction series to air on Norwegian TV. It also has a plot that is conspicuously similar to Ridly Scott's film 'Alien' that came to cinemas the year after Blindpassasjer aired.