The 1980s introduced a diverse mix of science fiction TV shows, ranging from lighthearted sitcoms to darker, thought-provoking dramas. Many of the best '80s sci-fi TV shows have lasting legacies within pop culture and even influence some of the greatest sci-fi series today. What makes these series truly great is their ability to use the genre's tropes to tell deeper, more meaningful stories that often have something of importance to say about humanity.