One of my favourite all-time space opera series shown on the telly is Firefly . I bought the DVD box set and I've watched the movie that concluded it, Serenity , countless times. (still can't quote it as well as I can with Star Wars: A New Hope though.) Every good SF story always brings something "new" to the scene. One of the new things that Firefly brought to SF was that it was a space western. There have been space westerns before, yes. Star Trek started out with Gene Roddenberry pitching to TV executives as " Wagon Train to the stars" while the Tatooine scenes in Star Wars: A New Hope are very heavily influenced by Westerns. The Japanese took the concept a little further with TriGun and Cowboy Bebop, but there has never really been a space western like Firefly . The real conceit of Firefly was that it was space opera that took the words "space western" literally, blending it with a Sino-American influence, and throwing out the silly aliens...
Science Fiction. Fantasy. Malapropisms.