Well, Jim, I'm sorry to disappoint
- I think it would've been quite similar to the way things have panned out this year. They might have persisted with the hotel arrangements and filming in the studio, both of which involved regular, close-quarters social contact, and plenty of physical contact, for as long as they were allowed to, but a halt would have been called after a certain point. I assume the shows that had been recorded would have been broadcast as normal, which - provided this (the worst of the pandemic) lasts a few months - would give them plenty of time to eat into the pre-recorded shows and continue with filming while they were being broadcast. So if you're six months ahead with filming, and the worst of it lasts for three months, you can resume the filming after those three months when it's safe to go back, and you'll still be three months ahead anyway.
That, at least, is how I think it would have been. Who knows? We could be postponing things for the next two years. People might get so bored that this forum springs back to life...