I saw a post from a doctor, that said do what you need to do, for your own mental health and what not. If you need to have your children watch more than the suggested normal screen time, do it! Now isn't the time to think about "the right thing" and all that, which we do during our normal daily lives. If getting yourself some quiet time to get work done, have a call you have to be on, or hell, you just need some quiet time to get your thoughts together, have them watch something. If it makes you feel better, something educational. There's tons of educational shows/videos out there. Just saying if all else fails and it's all you have left, don't feel bad or judge yourself because they're watching a screen and/or more screen time than you would like.