They showed Caligula ripping the baby from his sister's womb. Whoa, maybe I was watching an unexpurgated version. In the one I saw, this wasn't shown, just the lead up, followed by a cutaway with Drusilla's screaming, then Nero came out of the room with a bloody mouth. Did the full version actually show the "caesarian section"?
You mean EXPURGATED ( "unexpurgated" means that nothing has been cut out ) and yes, I think that you saw the American/PBS cleaned up version. The one that was showed in England, had a bit more nudity and they showed the horrible ripping the baby scene. It wasn't THAT graphic; just more bloody and no cutaways...no actual cutting, but far more nasty than what you saw.
I've seen both versions and can tell you, there are some differences in what was shown in each country.