When there are no cameras at the show. Home requires attention and care in order for it to continue being a living house. the kids show during the day, but at night it has no eyes on it anymore. so it tries its best to make Wally devote himself to it, as a form of twisted self preservation. it hurts Wally in these attempts. but if Wally was to keep the cameras on at all times, then Wally could keep his safety by interacting with his precious viewers. Thus began the nighttime show.