He watches TV. George Conway has been doing an experiment. He’s been micro targeting ads to micro target Trump specifically to get a reaction.
They bought ad time on fox and things like the golf channel for the region around Mar a Lago. And as soon as the ads played Trump started rage posting on social media.
See https://youtu.be/oTDqBO0yGPQ for an example.
I’m not sure he can see his feet.