The pleasures and perils of booze and sex are the focus for the final episode of Ian Hislop's series about Victorian reformers, campaigners and philanthropists. In attempting to wean Britons off alcohol and away from vice, Ian wonders whether the 'Do-Gooders', despite their extraordinary energy and success in transforming every other aspect of 19th century society, had finally bitten off more than they could chew.

• Ian Hislop