Science fiction fandom other groups including LGBT communities, libertarians, neo-pagans, and space activist groups like the L5 Society, among many others. Some groups exist almost entirely within fandom but are distinct and cohesive subcultures in their own rights, such as filkers, costumers, and convention runners (sometimes called "SMOFs"). Fandom encompasses subsets of fans that are principally interested in a single writer or subgenre, such as Tolkien fandom, and ("Trekkies"). Even short-lived television series may have dedicated followings, such as the fans of Joss Whedon's "Firefly" television series and movie "Serenity", known as Browncoats. Participation in science fiction fandom often overlaps with other similar
That Was the Week That Was of 2004. Soon after its premiere, Shelley Ross, the executive producer, was fired and "TW3" ended with her dismissal. A Canadian show, "This Hour Has Seven Days", aired from 1964 to 1966 on CBC. Although partially inspired by "That Was The Week That Was", the Canadian show mixed satirical aspects with more serious journalism. It proved controversial and was cancelled after two series amid allegations of political interference. "This Hour Has 22 Minutes", created by Newfoundland comic Mary Walsh, has been running since 1992 although the two are not related. An Australian show, "The Mavis Bramston Show", aired from 1964