In my opinion if you have a meeting where a few people talk to thousands in a company you're better served by sending everybody a static video and allowing for Q/A via email. Every time I hear about meetings that could of been emails I can't help but think somebody's trying to justify their jobs.

Edit: Typo, and on a sidenote, I'm glad I hear about these sorta meetings from others, my boss does his best to keep us out of useless cruft.