Alien Nation

Having grown up in a household where Science Fiction was Dad's staple, I never really picked up on it, preferring more real-life drama. Having said that, this show is about the top of the line for TV scifi. The characters are believable, fully developed and imperfect.The acting is top-flight, and the stories, mostly carrying a message, are not overly burdened or preachy. The culture, habits, language, slang of the Aliens is presented in a matter-of-fact manner. Other than Heinlen or Finney, this is about the best scifi I've come across. And I don't like scifi.