Bit of a tangent but in the film industry we call them 'cosmetic fixes' and there's whole VFX houses dedicated to it now. It's still a very manual process although tracking is getting pretty amazing. It's becoming standard that some actors will basically end up having every mid and close up shot turn into VFX. It's kinda horrible but it's the price of higher definition and obsesssion with youth.
Got a link to the robot grape peelers TP?