Although there is some level of hierarchy among most of the discussion boards in which certain contributors are valued more highly than others, newcomers are most often welcomed into the fold. Most importantly, these sorts of discussion boards can have an effect on the media itself as was the case in the television show Glee. Trends on the discussion boards have been known to influence the writers and producers of the show.[20] The media fandom for the TV series Firefly was able to generate enough corporate interest to create a movie after the series was canceled.[21]