I just finished my first watch and per many recommendations from this group, I immediately started a rewatch to catch some of the jokes I missed the first time around.
I read a lot of comments on here about the Tom Hanks foreshadowing in the first season (which I had forgotten about) and in the same episode, there is another foreshadowing that I didn't remember because it seemed so insignificant the first time around. When the staff is discussing someone to take the fall, someone mentions Gary, and Selina says something to the effect of, "Why would I fire Gary? He's the only one here who cares about me?" For a comedy, this really hit me hard.