I always confused this with "3rd Rock from the Sun"
I mean, back in the day, I never watched 30 Rock (doesn't interest me) and I only watched a few episodes of the John Lithgow show.
So what does "30 Rock" even mean?
30 Rockefeller Plaza (sometimes called 30 Rock)
the headquarters and New York studios of television network NBC
https://en.wikipedia.org/wiki/30_Rockefeller_Plaza
I see. So the show caters to rich capitalist corporate bastards, eh?