When Sam is about to take a shower standing on a rug, pedicure is seen on her toes. A few shots later, Sam is standing on a tub with no pedicure.
When the power comes back on, the TV comes on, but that kind of modern TV doesn't have the kind of switch that stays on when the power's off, so it should have had to be turned on again.
Nobody seems to have noticed that every time they use the device that the dial has moved from where it was left.