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
McCoy (TV series) comedian. <nowiki>*</nowiki> Unknown The series was produced in the format of two-hour telefilms, that were broadcast as part of the "NBC Sunday Mystery Movie" as one of several rotating series that would air once a month. Other series involved in the Universal Television franchise package were "Columbo", "McCloud", and "McMillan & Wife". However, "McCoy" failed to garner the same ratings as its fellow programs and was cancelled after an initial 90-minute pilot TV movie ("The Big Ripoff") and four two-hour episodes were broadcast. At least one novel based upon the series was published in the United Kingdom. "Leverage" McCoy (TV