We've arrived at the first major hurdle to watching Old Who -- missing episodes, of which Marco Polo is the first, with zero footage remaining. So how did we "watch?" Audio (lifted by passionate fans and gifted back to BBC), narration (by one of the surviving cast members, William Russell), telesnaps (we explain) and the Target novelization. None of which make us miss it any less. [Tech note: We record over Skype and this week's feed was not ideal. Couldn't be fixed, so we apologize and promise to do what we can to prevent it in the future.]