Eh. I say just avoid the window/star problem altogether and just change the Briefing Room set using other kinds of set decorations and furnishings. Use a potted plant instead of a window. Boom! Done.
Yeah-no.
This thread is about how unique and welcome the observation room was ---
because it is NOT a simple redress.
It looks great and you don't get the impression it is something else.
I understand that they had a tight budget and I am suggesting that they could have inexpensively done a little more to give the briefing room a little MORE than a potted plant to make other versions of it unique.
For the rec room they could have hung that rounded view-screen they used in Menagerie to imply that sometimes things were watched for entertainment.
Of course they dropped in a few props like the chess set and such but that really wasn't much effort. It seems like folks who work "indoors" almost all the time would have wanted to "look outside" once in a while.
The ship model clearly showed several windows on the ship--why not actually show those areas?
It's not like cutting a window hole in a plywood wall and adding a window and a star-field backdrop was a budget concern.
I really do think it just became that the show became the adventures of the big 3 going down to a planet and getting captured and escaping and solving the problem of the week pretty much by themselves.
therefore making the ship seem more expansive and unique wasn't a concern.