The concern is rather the nature of television as a replacement for human relationships. By watching people interacting on TV sitcoms, the junkie is able to dispense with interactions of his own. Those energies and interests that would otherwise be focused on others — in storytelling, arguing, singing together, or playing games; in walking, talking, eating, and acting — are consumed on the screen, in vicarious lives that involve no engagement of the viewer’s own moral equipment. And that equipment therefore atrophies.
Read the rest of Roger Scruton's article here.