See rare photos of TV comedy stars including Steve Coogan

Three Fights, Two Weddings and a Funeral: Steve Coogan as Pauline Calf with Gaynor Faye behind the scenes Photograph: Pozzitive.co.uk

Three Fights, Two Weddings and a Funeral: John Thomson as Fat Bob and Steve Coogan as Pauline Calf Photograph: Pozzitive.co.uk

Behind the scenes on Coogan's Run: Steve Coogan and the receptionist (Bernard Wrigley) agreeing that clowns are really really scary Photograph: Pozzitive.co.uk

Coogan's Run: Steve Coogan as Paul Calf as a blue cult person waiting in the rain Photograph: Pozzitive.co.uk

Steve Coogan's The Man Who Thinks He's It tour: Simon Pegg backstage, in 1980s New Romantic makeup Photograph: Pozzitive.co.uk

Harry Enfield & Chums Photograph: Pozzitive.co.uk

The Robbie Coltrane Special: Robbie Coltrane as Bob Geldof Photograph: Pozzitive.co.uk

The Big Fun Show (from left): Neil Mullarkey, Josie Lawrence, Tony Hawks, Paul Merton, John Irwin and Julian Clary Photograph: Pozzitive.co.uk

Armando Iannucci's Charm Offensive Photograph: Pozzitive.co.uk

Crawford Park: Celia Imrie Photograph: Pozzitive.co.uk

Pozzitive founders David Tyler and Geoff Posner Photograph: Pozzitive.co.uk