Is there an analogue of Youtube for broadcasting with the ability to ask questions by voice, and not just in a chat?

Question

YouTube

Is there an analogue of Youtube, with one difference that during the broadcast, participants could ask questions through a microphone, and not just in a chat?

Answer 1

Skype?

Answer 2

If the audience is not lamers, then there is such an option - create a room in TeamSpeak and display something like "To ask questions, connect to us in TeamSpeak: 220174".