Chi-Tien Lui is known the world over as one of the last people who can repair and preserve TV art. Because the video art by the likes of Andy Warhol and Nam June Paik were made with now antiquated televisions. Inevitably, those break. And finding the right replacement parts is almost as difficult as finding someone who knows how to actually fix these things. But the only other alternative is letting those works of art be lost forever. And that can’t happen.