@zombiedog:

Well, it’s been a long time since I have been reading up about the way DS9 and Voyager were produced, worked on and stored on DVD - yeah, I think you are correct about the episodes all being composited on tape (post production was done on tape, adding the vfx and such).

I was also aware about the Grain option in Topaz, but for me it was kind of a mixed bag - I guess I’ll stick with my workflow so far. But I will have a look on season 3, possibly adjusting it, since the quality was slightly better there and would perhaps need “less aggressive work”. Season 4 onwards certainly will need modifications and I will have to do some trial and error again.

On a side note: Seasons 1 & 2 of DS9 are now finished and I am uploading - episodes will be available to those who ask and after each example post in the open topic is done.