"It was the Dawn of the Third Age of Mankind..."
Thus, started Babylon 5, one of the best science fiction series to have ever been aired on television. Created, produced and largely written by J. Michael Straczynski, the series detailed the story of a quarter million humans and aliens, a shining beacon in space, all alone in the night; the last of the Babylon stations.
WB has placed the entire first season of Babylon 5 on its Web site, including the pilot film, which differs in a significant number of details from the series. If you somehow missed out on the series, I encourage you to spend some time with a grand space opera.