Welcome. I will always make input on this site so feel free to mention as many Zone episodes as you like. Have you seen the Serling interview? Just saw it again it is with Mike Wallace it's from 1959 it's still on Youtube and in two parts. If you type in "Rod Serling Interview" you'll see it.
It's really worth a look, I'am not sure if it's on any of the TZ DVDS.
You mean the political correctness and that really is what separates Serling from a lot of writers. In the interview Serling talks about how writers tend to pander to the network and become censored. He had guts and that's admirable about this guy besides his genius. He didn't pander to one side which is what we see much today which explains why we see so much crap on TV and Movies today not too mention what we see on the news..
The latter half of the interview Serling does talk about the Zone and how he has great pride in making it.