"You know how we made that?" he asked me. "Lights, a sound man, two cameras, a week per session and they had me in makeup. You know how they do it now? The kids hold up their (censored) iPhones in class!"
If a professor was technically challenged, a TA was usually able to get it going. We had an emeritus professor that was all thumbs producing video clips in office. It took him a while for to get the hang of it, but he finally did..