postgate thought he could make better programmes than the ones he was working on, so he created "alexander the mouse", a story about a mouse that was born to be king. postgate met an artist called peter firmin. he was good at drawing animation characters. the two men started to work together and for 30 years they created their well-known television series, running their own company called smallfilms. the characters in their stories were moved by magnets under a table. they created "the saga of noggin the nog" (1959-1965). it was based on old norse legends. then came "the seal of neptune" (1960), a story about horses that lived under the sea. they created "the pogles" which was about a witch, but after the first broadcast it was thought to be too frightening for children. then came "the clangers" (1969-1974 which was their first colour production. their most famous creation was "bagpuss", the story of a toy cat made of rags that sat in a shop window.