anchor.diff:  s_num|e_num|name|minutes|link|desc|notes
  -1|1|An Unearthly Child|100|https://en.wikipedia.org/wiki/An_Unearthly_Child|Two school teachers' curiosity leads them to a junkyard and the Doctor.|
  +1|1|An Unearthly Child|100|https://en.wikipedia.org/wiki/An_Unearthly_Child|Two school teachers' curiosity leads them to an old box in a junkyard.|
   1|2|The Daleks|175|https://en.wikipedia.org/wiki/The_Daleks|The TARDIS lands the Doctor, Susan, Ian and Barbara on Skaro.|
   1|3|The Edge of Destruction|50|https://en.wikipedia.org/wiki/The_Edge_of_Destruction|The TARDIS falters. The Doctor, Susan, Ian and Barbara turn on each other.|
   1|4|Marco Polo|175|https://en.wikipedia.org/wiki/Marco_Polo_%28Doctor_Who%29|The TARDIS lands in Central Asia where the travellers meet Marco Polo.|Lost
  
positive.code: 1|8|The Reign of Terror|150|https://en.wikipedia.org/wiki/The_Reign_of_Terror_%28Doctor_Who%29|The Doctor and his companions become embroiled in the French Revolution.|Partially Lost
  2|9|Planet of Giants|75|https://en.wikipedia.org/wiki/Planet_of_Giants|The TARDIS doors open before too early causing it and everyone inside to shrink.|
  2|10|The Dalek Invasion of Earth|150|https://en.wikipedia.org/wiki/The_Dalek_Invasion_of_Earth|Ian and Barbara are happy to back in London, until the Daleks arrive.|
  2|11|The Rescue|50|https://en.wikipedia.org/wiki/The_Rescue_%28Doctor_Who%29|The TARDIS takes the travellers to the planet Dido.|
  2|12|The Romans|100|https://en.wikipedia.org/wiki/The_Romans_%28Doctor_Who%29|The year is 64 AD and the Doctor and his friends take a holiday.|
  2|13|The Web Planet|150|https://en.wikipedia.org/wiki/The_Web_Planet|The TARDIS is dragged to the planet Vortis where the Doctor meets the Zarbi.|
  2|14|The Crusade|100|https://en.wikipedia.org/wiki/The_Crusade_%28Doctor_Who%29|The TARDIS lands in Palestine where King Richard the Lionheart wages war.|Partially Lost
  2|15|The Space Museum|100|https://en.wikipedia.org/wiki/The_Space_Museum|The TARDIS lands on Xeros where the travellers see their future.|
  2|16|The Chase|150|https://en.wikipedia.org/wiki/The_Chase_%28Doctor_Who%29|The Daleks have built a space/time vehicle and are in pursuit of the Doctor.|
  
negative.code: 3|22|The Massacre of St Bartholomew's Eve|100|https://en.wikipedia.org/wiki/The_Massacre_of_St_Bartholomew%27s_Eve|The TARDIS takes the Doctor and Steven to Paris in 1572.|Lost
  3|23|The Ark|100|https://en.wikipedia.org/wiki/The_Ark_%28Doctor_Who%29|The TARDIS travels to a giant spacecraft in the far future.|
  3|24|The Celestial Toymaker|100|https://en.wikipedia.org/wiki/The_Celestial_Toymaker|The Doctor and his companions meet the immortal Celestial Toymaker.|Partially Lost
  3|25|The Gunfighters|100|https://en.wikipedia.org/wiki/The_Gunfighters|The Doctor is barely involved in the gun fight at the OK Corral.|
  3|26|The Savages|100|https://en.wikipedia.org/wiki/The_Savages_%28Doctor_Who%29|The TARDIS arrives on a world with a seemingly utopian society.|Lost
  3|27|The War Machines|100|https://en.wikipedia.org/wiki/The_War_Machines|A worldwide computer system takes over and decides to wipe out humanity.|
  4|28|The Smugglers|100|https://en.wikipedia.org/wiki/The_Smugglers|The TARDIS takes the Doctor and his new companions, Ben and Polly, to Cornwall.|Lost
  4|29|The Tenth Planet|100|https://en.wikipedia.org/wiki/The_Tenth_Planet|The Doctor regenerates after his battle with the Cybermen.|Partially Lost
  4|30|The Power of the Daleks|150|https://en.wikipedia.org/wiki/The_Power_of_the_Daleks|In the Second Doctor's debut, he must defeat the Daleks on Vulcan.|Partially Lost
  