As others have said, truly great work.
I am indeed old enough to have watched these shows originally (although this old brain misremembered -- I would have bet my life the originals were in color). Seeing your color version has an interesting effect of actually seeming like my old brain remembers it this way, if I can explain it properly. Just like things seem more vivid in retrospect, my "memory" of the show is actually more in line with what you have achieved than the actual show was. In my mind the show was widescreen (my brain knows it was not, but my heart...) and in vivid colors and the characters were just as you rendered.
So I actually watched this side by side with the original, on my dual monitors, pausing and playing a few minutes from each to compare. Looking at the original it's pretty amazing that it's no where near as good as I remembered... but your version is. It's like you're inside my mind!! <g>. Almost every single choice you made was how I either remembered it or how I would have liked it to have been (down to such things as having the young trainee actually look young, whereas in the original he looks at least as old as Steve). The only "nit" I would pick is your robot is much fatter (I would have preferred him to be as sleek as the original). But that's a very minor nit -- otherwise you put it through the "make it better" filter and it came out glorious.
So I assume you didn't have a mocap solution since you talked about the animation being the difficult part. When watching this all I could think of in that regard was -- even with mocap, could I actually "perform" the way the marionettes do? I'm not so sure, but you sure have got it nailed down however you are doing it.
I eagerly await your next episodes.
Alienware Aurora R16, Win 11, i9-149000KF, 3.20GHz CPU, 64GB RAM, RTX 4090 (24GB), Samsung 870 Pro 8TB, Gen3 MVNe M-2 SSD, 4TBx2, 39" Alienware Widescreen Monitor
Mike "ex-genius" Kelley