Factual error: When the Doctor, Amy and Rory are on the roof and the Doctor says "The question for now is total event collapse means that every star in the universe never happened", the Gherkin can be seen in the background. However, the Gherkin wasn't built until 2003, whereas this episode takes place in 1996. (00:22:40)
Doctor Who (2005)
1 factual error in The Big Bang

Visible crew/equipment: During the warehouse battle, around when the Doctor tells Donna, "Hold on, I'm coming", the film crew can be seen reflected in a door at the right of screen. (00:28:20)
The Day of the Doctor - S7-E16
Clara: Doctor, what's going on?
Eleventh Doctor: It's a... Uh... Timey wimey... Thing.
The Doctor: "Timey" what? "Timey wimey"?
Tenth Doctor: I... I have no idea where he picks that stuff up.
Evolution of the Daleks (2) - S3-E5
Question: When the Daleks sabotage Human Dalek Sec and the Doctor's treatment to turn the dead human bodies into Dalek-Human hybrids, why does the Doctor not help Dalek Sec escape along with the other human prisoners? If he truly believed that Sec had changed (becoming less Dalek and more human), enough to voluntarily help him with the hybrid formula, then why not try and get him out as well?





Answer: Sec was killed and Diagorus wasn't connected to the same system as the dead human experiments. Also technically... Still a Dalek.
jakew25