<p>X-Men, also known as X-Men: The Animated Series, is an American animated television series which debuted on October 31, 1992, in the United States on the Fox Network as part of its Fox Kids Saturday morning lineup. X-Men was Marvel Comics' second attempt at an animated X-Men TV series after the pilot X-Men: Pryde of the X-Men was not picked up — though it was broadcast multiple times between 1989 and 1992.
X-Men was originally to premiere over the Labor Day weekend in September; however, due to production delays, it was pushed to the end of October. The "Night of the Sentinels" two-part episode originally aired as a "sneak preview" even though it was not ready for broadcast. There were many animation errors in these two episodes, but the errors were later corrected when Fox re-aired the pilot in early 1993. X-Men also stands as the longest-running Marvel Comics-based show, lasting 76 episodes. The second longest, the 1990s Spider-Man animated series, lasted 65 episodes.
After the box office success of the live-action X-Men film in the summer of 2000, Fox began airing reruns of the cartoon on weekday afternoons. At first, only episodes that primarily featured content in the movie</p>