I find it slightly funny that we go to such great lengths to encode noise, only for smart TVs to filter it out again with their noise reduction algorithms (at least you can turn it off, on most models).
Film grain is often added to computor generated output that is to be composited onto live action footage. If it were not, it would look fake. We also add motion blur and depth refocus.
Agreed though, it does feel weird as a vfx artist to be bringing down the quality of cg to that of film stock.
