I've watched TOS since I was a boy in the late 70's. It seemed to run an random order while in syndication then. Recently I started watching Season 1 of my Blu Ray set in production order. One thing I've noticed is that the stories and acting of the 1st season are on the same level as the other series finally reached in their 3rd season. The actors seem to know who the characters are early on. I don't recall any stiff or awkward performances from the regular cast. Perhaps it's just my fondness for the series. Or maybe the actors or writers were better then.
I agree. It reminds me of what someone said who was involved with Planet of the Apes (1968)
When you do science fiction you must be careful to introduce TOO MANY science fiction concepts at once or you loose your believability and then your audience.
Shatner, Nimoy, Kelley, all of them from the get go played it completely straight which is why we believed it because their acting grounded the viewer even though we were in a completely strange and new sci=fi world.
If Star Trek never existed and you went up to somebody and said...
How about a TV show with a giant spaceship that runs on crystals and goes faster than light all over the galaxy with a green blooded pointy eared first officer on board,
oh, and whenever these guys go somewhere they sparkle, disappear then sparkle and re-appear again wherever they are going.
Imagine your reaction.
Star Trek is an
out there concept, but so beautifully executed that you don't question what you are watching,
unlike most movies today that make me groan as they constantly break the laws of physics and believability with the usual CG jerk fest.
Roddenberry, Justman, Coon, Jefferies, Finnerman, all of the actors, writers, directors, really took their job seriously. A lot of those guys went to war.
They were professionals, not self entitled
20 somethings with no real life experience or drive to create something really special and unique.
Sorry, that last line sounded a little bitter (LOL)

Spockboy