Every image is feedback. Scrolling Instagram or Facebook gives you constant feedback.
Sometimes people get glued by a screen that they did not turn on; is that still feedback? E.g. kids watching a screen in some waiting room at a children's dentist.
E.g. suppose the subject is watching a game show. They get internally involved, within their mind, by trying to guess an answer before the contestant does and then fist pump when they get it. When watching a crime story, they try to guess whodunit. That sort of thing.
There can definitely be a sense of working toward a reward.