Here are two examples of TV diversity, one example of how to do it right and one example of how to do it wrong.
I've been catching up on my TV watching now that I don't work nights anymore, there is a series on CBS called All Rise about a newly appointed black female judge, the storylines are standard fare but what is unusual is the diverse casting, first of all, the show features 5 women and two men, two black characters, two Latinas, two whites, and one Asian, there is also a lesbian (she's gay but the show doesn't try to become The L Word) and an IR relationship between the black male bailiff and the Latina public defender. The cast of the show seems so natural that I didn't even notice the diversity until the third episode. The show doesn't go out of its way to point out the diversity it just exists. I also like that the black female lead isn't a drama-filled basketcase like so many other black women are portrayed as on TV.
Now, on the other hand, we have a newer show that just premiered last week call 911:Lonestar. This show is the silliest and most ham-fisted attempt at diversity I've seen in a really long time. The show stars Rob Lowe as a 9/11 firefighter who relocates to Texas, when he gets there he begins to assemble the "woke-ist" crew in the world. First, there is his gay son (who is getting over his black boyfriend dumping him), then there is the sassy female Muslim who plays by her own rules, then we have the transgender black "man" who is trying to prove something, next we have the Latino immigrant who just wants to be given a chance, a gay Latino cop (who has explicit scenes the lead's son) and finally, we have the other leads a middle-aged white woman and a mental-case white man who has a black wife (The devil's IR). The ham-fisted diversity is bad enough but the show doesn't actually care because the leads are all white people.
It goes to show that diversity can be natural on tv when people don't try to hit the audience over the head with it.