I'm never sarcastic about history stuff. We don't have an agenda to debunk everything. We just want to be as historically accurate as possible given oft shabby evidence trails.
This event right here, August 21, 1977. It comports with the event you describe.
We are, in "Fact", writing a piece about where the various titles used in fandom came from, but we're not interested in shooting people down. Where and when these names got into fandom and how is the subject.
As the Number One and test audiences, there actually may be some truth to that. My Fact Trek
work husband" is writing on a piece about audience testing and how that worked for
Star Trek, and it wasn't just audiences reacting to the program live. We don't always take Herb Solow at his word where Roddenberry is concerned.
If you're conflating anything about the talk—and I'm not saying you are—it could be the memory of seeing set photos rather than concept art, since the set plans we've seen mostly post-date August 1977. The Sept.-Oct. Inside Star Trek/Star Trek Trektennial News newsletter 23 says "Construction has already begun on Stage 9, where the new Enterprise is being built, although at present it only appears to be a giant jigsaw puzzle of plywood and boards," and we assume this was written in August given Harold Livingston had been hired, so it's possible some early construction photos were around by the time you saw Roddenberry speak.
But it would be two months hence, in the Nov.-Dec. newsletter, which printed photos of the sets under construction.
Maybe one of these?