While South Park hasn’t made a new Thanksgiving episode in over a decade, the show’s last celebration of the holiday did set up one of its biggest format changes. South Park season 27 won’t arrive until 2025, marking the longest gap between the show’s outings in its 28-year history. However, this is far from the first time South Park has changed. South Park’s first few seasons were absurdly crude, shamelessly silly, and primarily concerned with gore and chaos, but from season 4 onward, the show began to center on real-life news stories more frequently.

https://screenrant.com/south-park-season-17-thanksgiving-episodes-serialized-storytelling-introduce/