I see others comment on the other shows/movies (but I thank you so much Brainbin, and truth is life and e of pi for showcasing him, for your tantalizing and rather inspirational TNV!) and that leaves me to ask something about
2010.
OTL, the Soviet/American conflict stuff was the very framework of the movie
2010: The Year We Make Contact, but while it has been a good long time since I've read Clarke's OTL version of the book, which came first this time, any such stuff there was very subtle, on a par with the superficially friendly, only somewhat tense sparring we saw in the original
2001 movie when the delegation of Soviet scientists confronts Heywood Floyd on Space Station V. I don't think the rivalry even rose to that level in Clarke's book OTL; the whole superpower conflict issue was largely displaced onto the Chinese, who stole a march on both leading superpowers to beat both of them back to Jupiter in a surprise ship that was disguised as a space station.
And then the Chinese all died on Europa when the Europan life, attracted to their spotlights, broke through the ice and attacked their ship due to phototropism. IIRC, in Clarke's book OTL none of the joint Soviet/American crew of
Leonov/Discovery got killed, unless Dr. Chandra decided to die with HAL, it's been a long while since I read it as I said! I'm not sure I ever reread it since it first came out in '82!
In the OTL movie a Soviet cosmonaut does get killed--well anyway the Monolith takes him; audiences might wonder if he'll pop up again, though he doesn't in Clarke's books because Clarke never killed him off in the first place I think. (Frank Poole gets resurrected though).
So OTL the book wasn't saturated with superpower conflict themes, no more than they typically crop up in Clarke stories, and there they tend to take a back seat.
Here, you say "Clarke completed his sequel novel in 1982, greatly inspired by the events of Vulkan Panic..." But most of your description is of the movie, which differs from the OTL movie only in that
Discovery is not needed as a booster to enable
Leonov to escape.
That makes HAL's sacrifical role in helping the humans survive much less clear; in the OTL movie
Discovery had to be sacrificed since boosting both ships it would hardly achieve sufficient distance from nova Jupiter in time. Here, it isn't clear why
Discovery couldn't, under HAL's control, orbit up nearly escaping Jupiter with an apiJove high enough to survive--after all Europa winds up being illuminated much as Earth is by Sol, so even allowing for the initial burst being extra-bright a modest orbit change should do the job, leaving
Discovery as a robot observer of the new system.
Presumably
Discovery has to play some other role that somehow buys
Leonov time to escape?
Also in the OTL movie, and I think in the book, Bowman/Starchild doesn't spell out what is going to happen exactly; he just gives a deadline saying, be gone by this time, and leaves them all to guess just why they'd better be elsewhere. (Which is rather frustrating, wouldn't it be more effective for the Aliens to just let Bowman say what's going to happen and let the astronaut/cosmonauts do their own math? Or maybe the Aliens figured if the humans knew why they had to beat it, they'd scheme to come back or leave something behind, whereas if they are either incinerated or running for Earth when they get the ultimatum to leave Europa alone, they will be sufficiently impressed to comply?) So anyway all that's OTL.
Perhaps ITTL, Clarke wrote it the way that would make more sense to me (but admittedly lacks dramatic mystery and suspense)--Bowman just tells them, hey, this planet's turning into a star and it will be 10 times brighter (or whatever the right number is) than it will stabilize to for a few days, so you'd better head back to Earth. No, sorry, the Aliens don't take your Exxon card, Dr. Floyd, so no refueling...Then the rest follows and maybe it becomes clear why
Discovery and HAL can't survive if the humans are to have a chance. So we get the same drama of HAL coming through of his own will in the pinch.
Anyway in all this, both movies OTL and ITTL are full of the Soviet/American rivalry. When I saw the movie when it came out OTL, in 1984, I was pretty put off and disappointed by that; I felt that Clarke's more Olympian take had been prostituted to ripped-from-the-headlines sensationalism.* When I rewatch the movie now, I like it though. But it was definitely a big revision of the book.
ITTL, when you say Clarke was inspired by the Vulkan Panic, does this mean he put that stark conflict, or at least something intermediate between the mostly collegial relations in his OTL book and the drama of the OTL movie, right in his original text?
Did he then, as the movie OTL, leave the Chinese out of it?
*Brainbin and main authors, will there be anything like
The Day After ITTL? I actually avoided seeing that but I gather Reagan didn't; I've seen it cited as a factor in his eventual rapproachment with Gorbachev a couple years later. Not that this history suggested he was quite the "Movie America" caricature Jules Feiffer liked portraying him as in his cartoons of the time, but it did move him to ask his military advisors, "hey, this isn't what would happen, is it? You can prevent this, right?" Then they demurred and had to admit it might happen; it motivated him to get serious about detente again.
Meanwhile I'm here to tell you, as a young college student in these very days, the nuclear war panic was a definite thing in the early '80s. The perception among the lefty/hippie types I hung out with was that Reagan was a cowboy itching for a showdown; among right wing types such as I grew up among, it was that the Soviets were the ones looking for a fight and it was past time to shut them down. The difference was that lefties didn't think anything much worth mentioning would survive while rightists seemed to think that the righteous might be saved if they worked hard enough at it; perceptions of Reagan as the champion of the Christian Right, who seemed to think WWIII would in fact be Biblical Armageddon, didn't help either.
It was pretty amazing to us when Reagan turned up meeting amicably with Gorby. But that was years later.