The Adventure Game1980

Opening narration:
[FOURTH SEASON] Many light years away, on the far side of the galaxy, in a region often visited by time-travelers, lies Arg. A small planet of little consequence. The Argons, a polite race, nevertheless have a regrettable sense of humor, and enjoy testing the wit and perspicacity of any visitors. This testing of alien intelligences has become rather a popular past-time for the Argons, and it's one of their top-rated television shows. Now, thanks to the miracle of hyperspace laser-relays, we can link up with Arg-o-Vision as another party of Earth visitors is about to set foot on the planet and encounter its problems for the very first time...