In 1984, what type of literature is produced for the proles? How does prole literature differ from that produced for party members?
Anything will keep them from thinking about their situations and alternatives. Whether it be cheap novels or trashy pornography, or forumlaic songs, it has the same purpose --- take up their time and energy to keep them docile.
Did you ever wonder if the current "popularity" of pornography on the internet isn't serving the same purpose? When you're spending your time with pornography, you've not involved in other, more serious activities.