"I'd like to get more out of my event so that I can get more out of my future events." Agreed on all fronts.
Event Livestream
Consumers WANT Video Livestreams. According to Business News Daily, 80% of audiences prefer live video to written blog content, while 82% prefer live video to traditional social posts."
Resource https://www.businessnewsdaily.com/9442-how-to-livestream-advertise-for-business.html