At the end of the day, nobody really knows how much TV Trump watches, nor how much time he actually spends tweeting.
He has a staff that bring all sorts of stuff to his attention and he may actually spend very little time on twitter other than to type a few responses (i.e. troll) and then move on.
Exactly right. He has people to do those mundane things for him. He probably jots down broad strokes of what he wants to say on Twitter and who he wants to troll or twit any particular day. But I doubt very much he is actually on Twitter or watching TV very much at all.