Royal Wedding is going to have 2 BILLION viewers

I'm not a big fan of stuff like this, but I was blown away this morning when looking at the news.

According to multiple news sources, the royal wedding is expecting 2 BILLION viewers. Here's 1 of many news agencies claiming this figure: World's Media Gathers For Wedding Spectacle

If you look at Google News, you'll see hundreds of other news agencies are saying the same thing.

2 BILLION people watching a wedding.

Now according to Google, the population of earth is currently 6.7 billion people. Source: What is the population of earth

Now let's say that 1 billion people simply can't watch it (either they don't have a TV, or their government restricts it, or they are isolated from the media, or they live in poverty). I don't know what an exact number is, but I do know that 900 million people live in Africa and many of them are in extreme poverty, nevermind the rest of the world.

To be quite honest, I think 1 billion might be an underestimate. There are a lot of countries around the world living in extreme poverty, so I wouldn't be surprised if the number was much higher.

So we've got 5.7 billion people who could be watching the wedding. That means that 1 out of ever 3 people around the entire planet will be watching the wedding.

This is the largest audience in all of history.

Aside from the insane stats there, the marketer in me is looking at this and thinking - how much would a TV ad cost on something like this?

The SuperBowl (which is the largest annual show around the world) attracts 100 million viewers. TV ads range from $2 - $10 million for 30 seconds.

So if we use simple math, we could say that an ad at the wedding would run 20x that amount simply due to the scale. So we're looking at $40 - $200 million for a single 30 second commercial.

IMPORTANT: From what I've read it sounds like they have strict limitations on the TV networks running this, and they might not even be allowed to show ads. But regardless of that fact, keep going with what I'm asking below. For the purposes of my question, ignore the rules and assume they can run ads like they do with everything else.

Let's say you are a huge company and have a massive advertising budget. Would you be willing to blow $100 million to have a commercial played at this event with a prospective audience of 2 billion people seeing it?