The series' first 13 episodes were notable for being possibly the first time ever that an American animated series had a full season of episodes flow one into the next, creating a single continuing narrative, something the series producers fought heavily for. However, starting with season three, most episodes (except for multi-part stories) were shown in random order. The following list reflects the original air dates and seasons assigned by Fox, but Marvel's official site suggests that X-Men: The Animated Series episodes should instead be viewed according to script order.