One day on a whim I said to my family, why don't we "attend" last week's NBCC? So we did.
Apparently the Mandarin-speaking congregation (in my home church in Sydney) is getting a lot of attendees from Beijing.
When the restrictions were somewhat lifted (so that you could have more than immediate family in your house), we started a system where we rotate around to different people's houses in groups to join the videoconference.
There's no reason we couldn't have done these things before, but we just didn't do it until now.