I have this thing with any videos I do click on - I give them 60 seconds to gain or lose my attention - most of them waste that with music and intros so by the time they get around to speaking I'm already gone.

If they do gain my attention they may get my full maximum 5 mins video watching time, and if it's really good I'll sometimes listen to the rest later as an audio when I'm doing housework. But if any video is longer than an hour they don't even get to the 60 seconds test.