Big stage, stadium and festival performances are more popular than they have ever been, but is there an optimum audience size, beyond which you fail to get your point across?

Today's guest editor Stewart Lee, who thinks big venues can be tricky the more complicated your material, discusses the idea with the big venue comedian Tim Minchin, who seeks both "grandeur and intimacy" by performing at venues such as the Royal Albert Hall, and cult performer and small venue fan Billy Childish.

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