It seems to me that entertainment without learning isn't possible. Indeed, the pleasure that entertainment affords is a straightforward signal that the brain is learning, without exception. Take humour. What was funny in the past is usually not funny now, because humour depends on our current state of knowledge and is a means of opening our minds to new ideas.
Even the pleasure that comes from addiction and drug use indicates that learning is taking place -- learning the context of the 'high' (more and more subtle detail concerning the smell of the coffee, the crackle of the cigarette paper, the label of the wine being poured, the faces of one's fellow drinkers, etc, and linking this information to the pleasure itself).
Contrariwise, if one is not entertained, if one cannot find some pleasurable feature in the situation, then one is learning nothing. So learning without entertainment is not possible either!
Even the pleasure that comes from addiction and drug use indicates that learning is taking place -- learning the context of the 'high' (more and more subtle detail concerning the smell of the coffee, the crackle of the cigarette paper, the label of the wine being poured, the faces of one's fellow drinkers, etc, and linking this information to the pleasure itself).
Contrariwise, if one is not entertained, if one cannot find some pleasurable feature in the situation, then one is learning nothing. So learning without entertainment is not possible either!