Postmodernism 

Postmodernism embodies scepticism towards the ideas and ideals of the modern era, especially the ideas of progress, objectivity, reason, certainty, personal identity and grand narrative

Postmodernism is best viewed as a gradual and progressive reaction to the modernist movement; thus there are qualities that can be shared by each. Postmodernism, after all, embraces playful imitation so modernism can be evident as an intentional ironic reference. The mere definition of each movement can be a subjective playground for analytical minds but they can be best illustrated as two spheres interlocking where similarities meet.

So, even though a postmodern text can be constructed from already tried-and-tested genres, techniques and stock characters, it can still be as forward thinking as a modernist text (Pulp Fiction being a prime example).

Postmodernism acts against reason, orthodoxy and logic to bring us a text that is rich with surrealism and unpredictability.  You learn to accept the fact that there is no justification or reasoning behind actions or characters. They exist because they can exist; it is a celebration of the medium of television that allows The Boosh to pick and choose from a long history of tried and tested formulas.