not sure if anyone non-british would have got all the reference
I watched the entire event here in Italy, and they accompanied it with a very informative commentary for Italian viewers. Even though I’m Scottish, there were some things I didn’t catch, but which were explained in the commentary - like the boatload of Jamaican immigrants refused entry into the UK. I also got the impression that the commentators were reading this stuff from briefing notes they had been given, because they knew the names of the various scenes, names of actors, poem and book references, plus all sorts of other details. So depending on each country’s approach to the transmission, viewers may/may not have had help understanding it all.
All in all, I thought it was a really innovative way to treat the opening ceremony. Instead of huge spectacular scenes of formation-marching, we got a fascinating look at UK history and politics, set to some of the best music ever made, and cheeky and irreverent send-ups of ourselves and our Queen. That’s what the Brits are good at, and that’s why we’re utterly unique.