I don't think I had any major changes in opinion, though after watching the reboot for 10 years, I became horribly cynical about reviewing the old H50 shows in general as well as other TV shows. You should hear what I have to say about
Mission: Impossible season 5 which I've borrowed from the library recently, though this series is definitely a "fantasy show," something which I cannot say about Classic H50 with the exception of a few episodes.
In some of the early seasons of the reboot I began to get worried about how negative my opinion was, and I actually had an alternate set of ratings which was called something like "It's Just A TV Show Rating." These were usually 1/2 point (or more!) higher than the "regular" rating. I think if you look at the HTML of some of the early reboot season pages, where these alternate ratings were commented out, they are still there.
With the old show, you sometimes have to make allowance for the fact that it was difficult to produce the show in Hawaii and there was a several thousand mile gap between the filming locations and the production locations where the film was developed, the show was edited, etc., etc. But how should this affect the rating?
For example, I am hard pressed to give Hookman 4 stars, even though it is one of my faves because there are several really obvious "mistakes." Ditto for Nine Dragons, which has that horribly sexist line of McGarrett's which, by the way, is not in the script of the show that I have, though that is not the final draft. And Nine Dragons also has "mistakes" and the show itself is kind of lopsided with the beginning like a huge teaser and the ending very rushed to wrap everything up.
I was trying to find old ratings pages for the original show on my computer and web site, but I gave up, because some of the files were dated 2014 or 2015 and the date at the top of the page was like 2019. There was no logic to this. However, if you want to see the oldest version of my site available on archive.org with ratings for the shows, you can see it here:
https://web.archive.org/web/19981206...mjq.net/fiveo/
Jeff Herman also has a comparative look at my ratings from 5 of 6 years ago with IMDb ratings and his own ratings, I may post this somewhere soon. It gives ratings for individual shows plus seasons.