Can't say much about the hockey puck, but the mind blends frames above 24/s and I sort of doubt someone could tell 30 from 60 in a "blind test".
Given the viewing conditions in most homes, it is hard to believe that many people can see a difference between 1080x1920 and 720x1280. But follow a football down field, or hockey puck across the ice, and the difference between 30fps and 60fps becomes pretty apparent.
Change to slow motion and I'm sure most can tell.
I will say a 720p looks fuzzy or soft, compared to a 1080i.