“Lost in Space” was a childhood favorite so I’ve been watching it as part of a local station’s Saturday night lineup (I’m a geek I know). In the episode “The Golden Man” the Robinsons’ find themselves among two aliens who are at ‘war’. Penny Robinson (played by “Sound of Music” fame Angela Cartwright) offers to assist by filling the role of a mediator. Here she is explaining the mediation process to one of the aliens (not bad for 1966).