Sex House and the Refusal to Fuck
The problem for reality TV is that real life is too dull to make compelling TV, but compelling TV is obviously contrived.
The Onion gave itself a simple task: make fun of reality television, a drama already reviled and full of self-parody.
Satirical treatments of reality often strike for the grim and moralistic. In Series 7: The Contenders and in Dead Set, contestants end up killing each other, and the viewers are implicitly indicted as accomplices to inhuman carnage (explicitly, in the alternate ending for Series 7, where enraged audiences beat contestants to death for their reluctance to murder one another).