Sorry for the detour, but this caught my eye on page 1:
[...]and it dared to push the envelope in social commentary, sexuality, etc.[...]
Not specifically calling Christopher out on this because I see it everywhere in
Trek fandom, but this widely held perception of
Star Trek as somehow daring is rather exaggerated and oft repeated as if it were gospel.
Trek fans believe it because they've been told it repeatedly and since most 60s TV drama no longer get airplay (especially the half-hour ones) it's difficult for a modern viewer to accurately assess this for themselves. Sure,
Trek did have things to say, but any serious dive into 60s TV demonstrates there were way more daring shows prior to and concurrent with it.
@Harvey introduced me to
The Defenders—a directly political show—which dealt with social issues for most of its four year run (fall 1961–spring 1966), including pedophilia and vigilantism ("The Attack"), teen pregnancy and abortion in general ("
The Benefactor"), etc.
The Virginian once featured Ann Francis as a female lawyer, tackled class issues, the death penalty, Native American and women’s rights.
N.Y.P.D. portrayed anti-gay prejudice in its premier episode ("Shakedown") on September 5, 1967: a topic
Trek would duck for decades. Even lighter fare like
I Spy featured Eartha Kitt as a heroin addict and didn't have a happy ending. These shows did so without the relative safety of allegory that
Trek often employed.
Arguably,
Star Trek was part of a more politically minded trend in TV from the early 1960s, not a vanguard of it. It was certainly more daring than most contemporary scifi/fantasy/light entertainment, but compared to the drama-dramas it was frequently kid stuff by comparison to the largely forgotten heavy hitters of the era.