It is a sad fact that the BBC were somewhat careless when it came to preserving TV programs and Dr Who is no exception. There are some episodes that were saved and one might ask the question, "Why bother?". The majority of the really good stories belong firmly in the William Hartnell era and 'Marco Polo' is no exception. In some ways being able to listen to this story and having to rely on imagination is no bad thing. Scenes such as the the sandstorm in the Gobi Desert and Polo's penultimate duel with the treacherous Mongol warlord Tegana are best imagined. So, too, with the description of the interior of the Khan's summer palace at Peking. Even so, I would like to have seen the production, even at the risk of being disappointed! This audio production will not disappoint, however, if you enjoy a good story, brilliantly brought to life by an excellent ensemble cast. The linking narration helps to depict what is taking place and is not in any way intrusive. I am no historian and so do not concern myself with historical accuracy - I suspect liberties are taken here, but who is to say what is real and what isn't? Overall, this production is highly recommended so put on a pot of coffee, sit back, put your feet up and enjoy...