Binge watch.
He can only watch two episodes of something at the most It's not that he can't sit still for that long, as he is fine to sit listening to music or reading.
He says that two episode is about the same length as a film and therefore the optimum amount of time. "There's a reason they don't make three hour films," apparently. 
Which of us is being unreasonable?! Please say him, so I can make him watch more of the OA with me.