Many churches have been looking at ways to reach out evangelistically at this time and some have found that sharing videos via video conferencing systems like Zoom whilst uncomplciated ended up with a poor user expeirence due to low quality videos for participants.
The team at Jubilee Church Teeside have found a method to share high quality videos via Zoom using an additional program (OBS) to help. They have put together a detailed work through of how they have set this up.
Sharing High Quality Videos via Zoom - Windows (PDF)
Here also are some helpful articles from Alpha on running online courses:
Alpha Online - Main Page - lots of hints and suggestions
PDF - Running an Online Alpha
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We've also looked into whether this is possible using a Mac OS. Although we haven't tested the system it looks like it is possible using similar products. You can find out more here.