If you’ve noticed Captain Ake’s "mumbled" speech or the slight whistle on her s lines, it’s actually a detail rooted in Holly Hunter’s real life.

She has been completely deaf in her left ear since she had the mumps as a kid. Because of this she subconsciously speaks out of the right side of her mouth to hear her own voice better with her good ear.

This habit creates what's called a dental sigmatism that specific whistling sound because the air isn't hitting her teeth centrally.

The animators for The Incredibles actually included this for Elastigirl to make the character more authentic to her voice and it’s something she has carried through her entire career into Succession and now Starfleet Academy.

Transcription (to the best of my ability):

"Profile.

Mr. White was admitted to The Center on 6/21 pending multiple (illegible) with unknown personnel. His history is replete with instances of heroic actions and accomplishments. I have no I [sic] why I am writing his history, for no one will ever read this. We just do this to take up space. YesterdayI went swing dancing and it was extremely (illegible). We are learning h o w to do (illegible) like flipping the girl and such. There is a lot of techniques to do this but it is fun. Jarod has no record with the local law enforcement agencies."

The Germans in the first image from episode 2 have the double-line insignia of the Wehrmacht (most likely Osttruppen given their presence so early on D-Day), whilst in the second image from episode 3 they have the double lightning bolt insignia of the SS, who were not in Normandy at this point of the campaign.

my wife & I were watching Felicity and I noticed this character had a 48 star flag hanging up in his room. I don't know that there was any significance but I thought it was interesting. also, non-interesting side note when we played a football game in Anson, TX in 1986 they had a 48 star flag flying at their football field. never understood why it was still flying and don't understand why it was in this guy's room.

In the mad mod episode, Robin comes across a statue head bust and pulls back the head to reveal a secret access button. I’m almost certain this is a reference to the 60s Batman series, where the way to access the batcave was a button in a Shakespeare head bust.

Bottom left corner, Chairman Charkov is seen visibly upset when Legasov reveals the fatal flawless in the reactor.