Corrected entry: In episode seven the Doctor says that he is sending Zoe and Russell back to the 1917 (World War I) zone, but instead they arrive in the American Civil War zone.
Corrected entry: After the second doctor's regeneration, the TARDIS lands in a field with trees around it. When the third doctor comes out of the TARDIS, the background changes completely.
Correction: Correct me if I'm wrong here, but doesn't the Third Doctor not actually appear at the end of "The War Games"? As I understand it, the serial ends with Two being punished by the Time Lords by being made to regenerate, but the results of the regeneration aren't seen until Three arrives on Earth at the beginning of "Spearhead From Space."
Correction: It wouldn't be the first time he's got the coordinates wrong.
Josman