We webcast using Vimeo, a professional livestreaming video platform which is viewing only (it’s very similar to watching a YouTube video).
Zoom is great for simple video chat but it’s not designed for professional live streaming. Therefore we do not live stream via solutions such as Zoom or Skype where viewers can be seen or talk back, because the video and audio quality on these platforms is designed for online meetings and not professional webcasting to large numbers of people.
Additionally there are copyright restrictions on these platforms which prevent the inclusion of music in webcasts. Automated matching algorithms will mute or end the stream.