I'd say it was probably in multiple ways. One of them would be the obvious way of YouTube and the way that YouTube operates. It appears on people's “recommended” pages, but also through other social media channels, like Twitter, for example.
Then people hear about me if I call into, say, a press conference. Oftentimes, generally, I'll get messages from people saying they found my show by hearing me ask a question at a press conference. Definitely there different ways.
Again, I think a lot of people find out about by it word of mouth. Also, people find it through the way that YouTube recommends it to various people.