Since I've got CBS All Access and since they have DS9 available, I picked up the series where I had left off, about mid way through S6. Here I encountered one of the most brazen examples of "Star Trek Church", which I describe as a sermonizing episode about humanistic values. The episode in question is "Far Beyond the Stars", episode 13 in season 6.
This is the definitive Star Trek anti-racial episode built on the flimsiest of premises. Captain Sisko finds himself hallucinating that he's a science fiction writer in New York City in 1953. That's right, he's dreaming (or having a vision.) I guess they didn't want to use the lazy writer's approach and fire up the holodeck this time.
He works for one of the pulp Sci-Fi magazines that churn out short stories and novellas for a monthly issue of the magazine. One of the illustrators has drawn a picture of a space station that looks eerily like Deep Space 9. Sisko, the writer, is inspired by the drawing and starts writing about the space station, using a black captain as the main character. He titles the story Deep Space Nine.
Everybody at the office loves his story, except the editor (played by Rene Auberjonois/Odo), who complains no one will believe a black man would ever be put in a position of authority, well, anywhere, much less on a space station! He decides the story's not going to get printed. One of the characters laughs off the story as "black man on the moon--never going to happen." Unbelievably, one of the characters uses the "N" word. The episode even has a senseless shooting of a young black man by two white cops. The same two white cops had previously beaten up Sisko earlier in the show, well, just because he's black.
The episode was directed by Avery Brooks, the actor that plays Captain Sisko. Apparently it was one of his pet projects. The sets and costume were excellent and it was fun seeing all the characters without their Star Trek uniforms and/or alien makeup. Worf shows up as a baseball player; Dax is the editor's secretary. Dr. Bashir, Chief O'Brien, Kira, and Quark are also writers at the magazine. I thought it kind of funny that Quark's human equivalent character was somewhat of a communist sympathizer, which is the furthest thing from the capitalistic Ferengi that he usually plays on the show. The production values were excellent, and the acting was very good, except for Brook's over emoting in the climatic scene.
I Googled the episode and it makes just about everybody's Top Ten list of episodes.