Opinions on the remastered versions
None of it was essential, and what we got was kind of a grab-bag:
Some of it was nice work, but not a good fit for the original show.
Some of it was a questionable choice, and also not a good fit for the original show.
Some of it was "Why did you even bother re-doing that? The original effects were fine, and this--while it kinda fits--simply makes it look different without improving anything."
They did patch a few bits which had been emphasized by higher-res picture quality.