15:20Twentieth Century FocusSeries 5Episode 2: Towards a Classless Society: Crossing the BarrierBBC One Duration: 20 minutes Mon 19th Jan 1970, 15:20 on BBC One SouthMary Marquis finds out what happens when working-class parents move into the middle class and begin to educate their children by their new standards.GenresLearningSecondaryBrandTwentieth Century FocusSeriesTwentieth Century Focus: Series 5 Source: BBC Online