Nudity wasn't integral to the plot, but I do think it added something artistically and helped the characterizations a bit. It definitely wasn't gratuitous.
Good point about the late 2015 though, oh PBS.
Scratch and claw for every day you're worth!
Make them drag you screaming from life, keep dreaming
You'll live forever here on earth.
PBS has shown male ass many times over the years, and full frontal in nude dance. I particularly remember Steambath and Tales of the City. Here's a link to Steambath on YouTube
And PBS got in a lot of flack for the male nudity IN Tales of the City which is why the sequel moved to SHowtime. I thought they managed to not show the brief nudity in South Pacific either--but I could be wrong (I know back when Passion was filmed, apparently there were two takes for the opening, one with nudity and one without, although obviously if that's true, the nudity take was never released, even on DVD.)
The nudity in South Pacific did make it into the broadcast, and I believe there is a copy of Passion floating around with the nudity in. I haven't seen it, but I've seen it on trader's lists.
Yeah, PBS doesn't show one whit of skin since the far-Right went after them in the early nineties.
"Impossible is just a big word thrown around by small men who find it easier to live in the world they've been given than to explore the power they have to change it. Impossible is not a fact. It's an opinion. Impossible is not a declaration. It's a dare. Impossible is potential. Impossible is temporary. Impossible is nothing.”
~ Muhammad Ali