The one piece of science fiction that really struck me in this way is the 1960's BBC television play The Year of the Sex Olympics. It manages to predict the onset and results of reality TV with startling accuracy. Highly recommended, if you can find a copy.
Is that where Futurama's references to an "Olympic gold medal in limbo.. and sex" comes from? I always found that quite curious, but could not find out where the jape came from..
