"The Infinite Vulcan" was first broadcast on NBC on October 20, 1973. James Van Hise wrote in his book "The Man Who Created Star Trek: Gene Roddenberry", that "some of the writing on the series", specifically that on "The Infinite Vulcan", "left much to be desired". In James Rundle's retrospective of the episodes for "SciFiNow", he gave "The Infinite Vulcan" a rating of three out of five. "The Infinite Vulcan" was included in best of/recommend lists by some reviewers. In "Wired" magazine's list of episodes of the series to watch after they became available for free on the official "Star Trek" website, "The Infinite Vulcan" was included specifically because it was the first episode of the franchise to be written by one of the actors. The episode was included in seventh place of the best episodes of the series by the website Topless Robot, who added that while Keniclius' plan was "unclear", it had the "greatest ending of a cartoon ever."