What piece of information, what opinion, what story did you share that someone felt so moved by that they'd bring it up with a coworker or fire off a text about it? If the honest answer is "I don't know," that's the problem worth solving.
"This should come as no surprise, as we've been building out this channel. We are really pleased with how it's grown. We're really pleased with your reaction to it. So, come Monday, the show will air live on YouTube."