I'd agree if she needed help for the task, but "difficult" doesn't mean impossible. Her response ("I hate you") is because he's made his point effectively: when forced to compare the value of watching TV against the effort of spending ten minutes moving the dresser, she was forced to admit how little benefit they get from the TV.
Also, I know humor shouldn't be analyzed, but I thought part of the humor in their dialog was that he took a principled stand about a pretty trivial act.
Also, I know humor shouldn't be analyzed, but I thought part of the humor in their dialog was that he took a principled stand about a pretty trivial act.