Yes you can. Learn more about it here.

Private broadcasts can currently only be viewed when you are logged in.

- Embedded players will not show the private broadcasts to anybody except you.
- There will be no posts to your 3:rd party services (Twitter, Facebook etc.) when you have activated private mode.

To turn on private mode go to "settings" in your broadcast application and change from public to private

You can also change from public to private and vice versa at any time via the Dashboard.