The quantum physics behind Once Upon a Time are a little wobbly, but who cares? IT'S A SHOW WHERE PEOPLE ARE ALSO FAIRYTALE CHARACTERS. It is literally the dream you had as an 8-year-old made real. Disney Princesses have real problems; things get rough. Also, the costumes are to die for. Still need convincing? We have five reasons you shouldn't wait to kiss (or, more likely, watch) Once Upon a Time, Sundays at 8:00 on ABC.