Yes, Zoom Webinar is the option they suggest, however, it takes a bit of work to get there. If you want to use Zoom and you have a video encoder, such as the Teradek VidiU (or equivalent), just disconnect it because it can't stream to Zoom. Zoom will only accept streams from their own clients. This means you'll need to get an HDMI to USB3 video adapter that can feed the A/V signal to a notebook PC running Zoom.
There are alternatives that don't require additional hardware, such as streaming to YouTube Live (free), Sunday Streams (paid), or several other services. For these, your video encoder will just need to point to their servers instead of the Meetinghouse Webcast system. No other changes needed.
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