@quinnslider it seems like artemis, artemis dehalo (is that the same thing?) and gaia may be the top algorithms.... ib used a lot of artemsis bouncing between different quality settings depending on the season, i believe. his process is written up on page 1 of this thread....
(also gaia is slower but you may have enough processing power to use it -- it may be more ideal for later seasons).
On a general note, picking up on some of what ib was saying on limitations with topaz, I was thinking the next great future technology might not focus on existing film grain, but rather re-build the image altogether. taking the input of what you have given it, comparing to what a house in HD should look like, or a grey coat, or a piece of furnature, and rebuilding each element in the frame, trying to closely match its form and lighting but also recognizing what in HD it should look like. as ib has explained, currently a solution like topaz is grabbing on the grain in the image to understand it better and building out from there, but when you have sources that lack grain (which Sliders s1 is limited on outside of the pilot) it's hard for topaz to get much more out of the image in terms of filling in missing lines of resolution. i will say it was much surprior to what an avisynth script was able to do with my brother's old documentary footage, so I think it is indeed quite an accomplishment. but in the future of any of the technology for this use case may be more similar to the AI image generators we have now, only 1000x better and better able to accurately reconstruct what a 4k scene should reasonably look like based on a low quality source.
Thank you RCLF, pneumatic, and ireactions.
I've been experimenting with the Artemis filter over the weekend along with the above settings for upconverting to 4K and the results are fantastic on the Pilot.
However, I have not been able to find the 6 hours required to stick with my computer to process this, so I will probably be doing a full process this upcoming weekend.
Thank you all for your feedback!!