One feature of Neighborhood 12358W is that certain profanities are automatically replaced with other words. In Chapter 1, Chidi surmises that this is because most people in the neighborhood don't like swearing, though since there are only four actual humans in residence, it is likely that the automatic censorship is calculated to annoy Eleanor Shellstrop in particular. This is less likely with the discovery that the real Good Place also censors language in the exact same way.
That this also allows NBC to air to the show at 8:30pm is, of course, a massive celestial coincidence.
Fork (and therefore, Motherforker)
Shit: Shirt (and therefore, Bullshirt and Shirtballs)
Hell: here (after they realize it's the bad place)
Dick: dink (and therefore, Dink bag)
Bitch: bench (and therefore, "Son of a bench")
Ass: ash (and therefore, Ash-hole)