Corrected entry: The Doctor followed The Daleks to Spiridon but then is shocked to see the Dalek at the end of episode one.
Corrected entry: The entire "running out of oxygen" plotline in episode one creates numerous contradictions with previous episode. We have seen the TARDIS materialize on the moon, in space and in other environments without oxygen so it must have its own air system. In addition, the TARDIS has been established to be vast, making it highly unlikely one comatose time lord could use up the entire air supply.
Correction: The plant thing growing on the door is sucking the oxygen out of the TARDIS.
Correction: The Doctor is shocked by the Dalek as the Dalek is invisible, and the Doctor, to this point, is unaware that Daleks can be invisible.