STAR TREK: The Next Generation:
"We'll Always Have Paris"
This is my most favourite Jean-Luc Picard episode. It's a single story with layer upon layer to it that gives the show a lot of rewatch value. As with The Genesis Project, there's an experiment of galactic portent. Jean-Luc discovers that the Milky Way's not such a big place, after all, when he gets a blast from his past. And Data's given charge to $ave the day. Of course, this was in the days before CGI could take hold, so the FX are highly stylised ... in a very pleasing way! And the music is atmospheric and appropriate. Everything that The Very Best of STAR TREK has to offer is present and accounted for.
Hot damn ... I love me some TNG!