I'm sure Gravity was impressive in the theaters - I don't believe it was actually shot in 3-D, though - I think it was converted in post production. But for me the bottom line is the story and presentation, and I found the story not that original although the presentation was excellent even watching at home.
I saw a 4K 65-inch TV today - they have 4K demo stuff playing and it's stunning - you can walk right up to the set and stand nose to nose with it and not lose any quality or definition - I've never seen that before. Colors are stunning, but one wonders how much better Blu-rays can look unconverted on this TV - color will probably be more accurate, of course, but since there is very little actual 4K product, it's probably too soon to even think about investing in something like this.
