I'm Sorry I Haven't a Clue down opportunities to work on it as he preferred to remain a listener. The official, authorised history of the show and ISIRTA, "The Clue Bible" by Jem Roberts, was published by Preface Publishing in October 2009. Humphrey Lyttelton, primarily known as a jazz trumpeter and bandleader, was invited to be chairman because of the role played by improvisation in both comedy and jazz music. In the first series Lyttelton shared the role of chairman with Barry Cryer but he made it his own (especially once Cryer replaced Cleese as a regular panellist) and continued as chairman until his death on
I'm Sorry I Haven't a Clue on his first move, thus denying the distinguished guest the opportunity to make a single move. The chairman apologised but explained that this was an unavoidable possibility and the guest left without having uttered a word. The show was allegedly inundated with complaints at the treatment of Sir Alec Guinness as on the actual recording Lyttelton can be heard to say, "Well I'm very sorry about that. Rather unfortunate. We would like to go on and ask you a few things about what you're doing currently, Sir Alec, but we do have to hurry on to the next game." This