This content is copyright of CelebMix.com. First released on October 26, 2025, IT: Welcome To Derry has already sparked massive chatter among social media and Stephen King fans. Only a few episodes have been released so far, yet we've already been able to get a sense of what the series is about and how it differs from the original IT novel. Below, we'll examine the main differences and what you can expect when watching the series. Timeline and Structure IT: Welcome To Derry's first season, which is set in 1962, which differs from the two timelines mentioned in the novel.