With YouTube you are your own television network. You are your own channel and you decide what to do with it. “Programming” is also your responsibility, what are you going to say to your “audience” how frequently will you update your programs or create new content?
Your “channel” is not for a general audience as is CBS or NBC; your audience is those people who are interested in your company or looking for the services you provide. It is a much more targeted approach than “broadcasting” really, the best term for what you are doing is “narrow-casting”.
Social tagging: marketing