I do constantly have to tap out with the stress in many programs, takes me ages to pick up and finish programs. Many people need tension to drive a narrative forwards, but for me it often gets too much.
I remember 80 Days Around the world where peril of missing a connection gave it tension; ever since documentaries seem to have used this more and more.
The BBC Horizon episode on Voyager passing Jupiter was so inspirational to me, but now we just being ridden by TV personalities.