Reviewing well produced sequences in movies and tv shows and spending an hour going frame by frame through them and appreciating the miniscule details that nobody consciously picks on, the type of things that turn a great scene into a masterpiece.
My favorite in recent memory is from episode 1 of the anime "Akiba Maid War," I would post it but that would ruin the surprise. Go watch this show, you'll know the scene when you're done. Absolute gem of an animated sequence, I could talk about it for hours if someone let me (it's like 90 seconds long)