After production of the third series of the television show, the duo settled down to write and plan the show. In rehearsals, the sketches were tweaked, re-ordered and re-written in order to accommodate the rapid costume and make-up changes required by the principal performers. To remove the need for stagehands to make set and prop changes, an elaborate stage floor was designed with track lines for the props. Sets were projected onto the background of the stage, with computer animated transitions designed by video and lighting designer Willie Williams.