Very cool laserdisc work! Working from raw captures is super impressive.
I couldn't help but notice some strong dot crawl artifacts, e.g. on horizontal and vertical lines in the SEGA logo at 1:36. It's a bit surprising given that this is a near-static image and ld-decode has a 3d comb filter.
one, but it defaults to a 2D comb filter by default for NTSC sources.
A (somewhat outdated) list of tweakable knobs for ld-chroma-decoder can be found in the appropriate section here: https://github.com/happycube/ld-decode/wiki/ld-decode-tools
However, the --decoder option defaulting to "automatic" is no longer accurate (judging from the source, it defaults to ntsc2d for NTSC sources). There are also now parameters for modifying the padding amount (it defaults to 8), and adjusting the first and last active frame and field lines, in order to output the VBI-containing lines as well.
Two additional Time Traveler captures from the same mastering run surfaced this past weekend, which is the minimum needed for median stacking, so at some point in the near future I'm going to have to run them through the pipeline. It would be good to have the ideal settings nailed down for when I get around to that, just so that the update to the CHD can be one-and-done, rather than having people perpetually redownloading a 15GB CHD with each incremental improvement.
The ld-decode project has a Discord server, it would be great if you'd join so that we can confer on the best possible settings.