One major difference is that shows based on graphic novels often inherit the themes and tones of the source material. For instance, if the graphic novel is a dark, noir - style story, the show will likely maintain that atmosphere. They also may have a different pacing. Graphic novels can be read at the reader's own pace, but shows have to balance that for a television audience. So, sometimes they might compress or expand certain story elements. Moreover, shows based on graphic novels can attract a different type of viewer. People who are fans of the graphic novel will be interested in seeing how their favorite stories are translated to the screen, and this can create a more engaged and sometimes more critical audience compared to those who watch shows without any prior knowledge of the source material.