This series is an excellent example of how to make a language course engaging. It was a coproduction of German and French TV stations for German TV. Each episode opened with a French-only segment that advanced the plot. This was followed by explanations concerning grammar etc. When the course ran on German TV, viewers could buy accompanying material such as books and audio recordings.
The series fully embraced the typical cheesiness that comes with such a production and turned it into an asset. We learn French by following the exploits of a family who suddenly find themselves in France without speaking a single word of French.
Or indeed any Earth language: The Gammas are a family of long-haired space hippies stranded on Earth with their spherical wooden spaceship / mobile home. Confronted with French culture, they naturally run into more misunderstandings and amusing situations than the typical German does when visiting the country.
This science fiction parody is produced like a stage play plus a few very cheap special effects, but it makes up for this with charming characters and a zany plot.
