Skip This If: The idea of a fantasy TV show trying to say something piercing about real-world bigotry through "werepanthers" sounds silly to you. The case-of-the-week structure lets it get away with some seriously dark, self-contained stories, but that freedom is what makes it a binge-worthy fantasy series. 'Game of Thrones' (2011 – 2019)The Show That Changed Fantasy ForeverWatch This If: No matter how many great fantasy series come and go, Game of Thrones remains the gold standard. So yes, if I'm recommending just one adult fantasy series, Game of Thrones is still the first TV show I'm going to mention. Do you think I missed a great dark fantasy series?