The Culture Show | Andrew Marr's Megacities | Bums, Boobs And Botox | In Confidence | In Confidence | IdealThe Culture Show7pm, BBC2Unusually, the biggest name on tonight's show is that of one of the reporters: David Attenborough, who presents a digression on the subject of John Craxton, as a new exhibition of the late artist's work opens at Tate Britain. Elsewhere, in a typically bountiful lineup, Mark Kermode spea…
