1/2. A walk through the world of fat with Victoria Wood as she tries to fathom out where she stands on press pressure, fat acceptance, slimming products and surgery. With her own special take she looks at the history of the ideal body shape and how the design of towns and our changing eating habits have led us to become a nation of overeaters. Producers Judith Holder and Ben Warwick Victoria Wood gets serious about the slimming industry: page 20