I threw some 35mm film grain over my prequel fan edits in the hopes it would help everything look a little more like they're part of the same space. It might help a small amount, and mostly subliminally.

The Hobbit: DoS looked bad to me as well. I didn't bother with the 48fps or 3D this time around, and I was really dismayed at what I saw onscreen. It looks like videogame cutscenes at times. I'm holding out for a decent fan edit of the trilogy when all this is over. And some film grain will certainly be in order.