Mine watch the Leno show (I usually tape it and replay during prime time, so I can skip half the guests and bands.)
They see children inventors and try to come up with solutions to “problems”.
Often they “invent” things they really want someone else invent.
One described erasable shoes, on which you could use erasable markers, the kind that wipe off whiteboards.
One made a prototype of a chalk-on-one-end pencil to use at school.
One glued a compass to the toe of his hiking boot.