The Abominable Snowmen:

10ep 1 – From inside the TARDIS, snow can be seen on the scanner, but when the travellers step outside, the surroundings are totally flake-free.

20ep 2 – Thonmi apparently doesn't know his own name — in his first scene with the Doctor he pronounces it "Thomni"!

30ep 2 – In a similar vein, the abbot's name is twice pronounced "Songtsen," but it appears in the credits as "Songsten."

40ep 2 – Padmasambhava says the ghanta has been missing for 200 years, when the correct figure is around 300 (the Doctor says he last visited the Det Sen monastery in 1630).

Add a new blooper for this story »