I think live lessons are great, for those who attend.
Unfortunately, all the live lesson provision we have trialled as a school (in the summer and last term when groups were isolating) has been very poorly attended, and students haven't used the recordings either.
So, we've made the decision as a school not to do live lessons next week, but to focus on providing work in other ways, such as short video explanations, narrated powerpoints, and other work that students can access at any time. This seems to have a much higher completion rate from our students. We provide support via email and SMHW.
If the closures continue, I expect we will try more live lessons again, but we have to go with the method that gets most engagement from our students.