According to the behind-the-scenes interviews, Zero Matter is the Darkforce, a Marvel Universe phenomenon already seen in Agents of SHIELD (in the episode with Amy Acker as Coulson's ex-girlfriend, IIRC). It's been hinted that the Darkforce may play a role in the Doctor Strange movie as well, so this may be a very indirect setup for that.
This is fun so far, though I wish the preceding Captain America special hadn't spoiled the initial Peggy/Dottie fight scene just minutes ahead of time. Peggy and Jarvis are still great together. They're just so English! And it's good to meet Mrs. Jarvis. She's fun.
It's good to see Peggy being respected in her work now, though Thompson is still being an insecure jerk and Dottie will undoubtedly get away because of his selfish move of sending Peggy to LA. Not crazy to see another shadowy secret society in the MCU... but hold on, isn't their insignia the same one as the group behind the monolith experiments in Agents of SHIELD? I just now realized that.
I'm unsure how anachronistic they're being with Dr. Wilkes. They acknowledged that racism was still very much a thing at the time, but even with his war record and his intelligence allowing him to get somewhere as a scientist, it was pretty brazen for him to make such overt advances to a white woman, something that would've gotten him lynched in a lot of the country back then. Which is probably what Peggy meant when she responded to his flirtations with "You're a brave man." Not that interracial romances wouldn't have happened back then, but I'd think they would've had to be more tentative and careful about it.
An advantage of being set in LA now is the freedom to use location filming. The Griffith Observatory is a great choice -- it looks the same now as it did then, and was as popular a movie location then as it is now. (It was also a featured location in The Rocketeer.) Although in that shot of the frozen lake, with LA City Hall as the only tower visible in the background, I imagine they had to digitally erase a whole lot of skyscrapers. Or else digitally add City Hall to the background of a stand-in location.
Is this the right place to talk about the Captain America special they aired last night? It was a decent overview, I guess, but some inaccuracies bothered me. It was implied that the original wartime comics showed Cap and Bucky fighting in Europe, but that was the '60s retcon. In the original comics, as with most wartime superheroes, Cap and Bucky were stationed stateside and battled spies, saboteurs, and fifth columnists on American soil. Also, they mentioned Peggy Carter in the WWII-era segment, but she wasn't created until 1966, when she was retconned into Cap's wartime past. She wasn't even given a first name until the '70s. And all the comics panels they showed of Peggy seemed to be from the comics adaptation of Captain America: The First Avenger.
It also implied that the Steve Rogers backstory used in the films, of the young man who didn't like bullies, was the same one Joe Simon and Jack Kirby used -- but Steve Rogers had no backstory in the original comics. He was introduced as a nameless "frail young man" just one panel before he was injected with the super-soldier serum, and his name wasn't revealed as Steve Rogers until the end of his debut story, after he was already established as Cap. I don't think his background was really fleshed out until at least the '70s.
Also, they implied that Marvel's special 9/11 tribute issue was a Captain America comic, but it was actually Amazing Spider-Man Vol. 2 #36, by J. Michael Straczynski and John Romita, Jr.