some folks are crying out for a reality check. jeff green field will be reporting our cover story. here we come. reporter: from california s orange county to the new jersey shore, real people are taking over the tube, for better.. what s the real deal here? reporter:. or maybe pour worse. the producers and casting directors have figured out that we have reptile brains. reporter: later on sunday morning, the reality behind reality television. osgood: as recent events in haiti remind us, we re often called on to give and sometimes to give generously. and give we do. but is that enough? this is a question our mark strassmann has been looking into. reporter: we live in the richest and, some would say, most generous country in the world. but would you ever consider selling your house and giving away half the profit? this is my house but not for long. you re thinking? i m like what? reporter: one family s determination to make a difference. and their challe