Organ Scaffolding really takes tissue scaffolding to a higher level. Already humans have their organs transplanted by natural/synthetic scaffolds injected with cells. This eliminates the need of organ donors.
Objections? I'm sure there will be from some religious groups.
However, I do think it interesting when it comes to more crucial parts of the body, such as the brain.
Nova's new host, Neil DeGrasse Tyson, great educator, really does make the show more colorful.