The 39th episode of Gene Roddenberry’s science fiction series Star Trek premieres on NBC. Jane Wyatt and Mark Lenard guest star as Spock’s parents in their first appearance in the Star Trek mythology (in fact, their only appearance prior to the animated series or the movies, despite the characters’ prominence), and Kirk gets into a knife fight trying to salvage interplanetary diplomacy. This episode’s depiction of Vulcan/Andorian unease would become a significant element of the later Star Trek TV spinoff Enterprise.
