The Invasion - S6-E3
Trivia: The episode was intended to prove that Earth-based stories could be produced cheaply and effectively. Ironically, it was the most expensive Doctor Who episode ever produced when made, and remained so for several years.
The Invasion - S6-E3
Trivia: In the animated reconstruction, released in 2006, the words "Bad Wolf" can be seen on a wall at one point. The phrase was a major plot point in the first season of the new series, where it turned out in the season finale, "The Parting of the Ways", that companion Rose Tyler had scattered them across time and space as a message to herself while temporarily possessing the power of the entire Time Vortex.
Answer: TARDISes are generally available for properly authorised use on Gallifrey; they're not usually assigned to a particular Timelord on a long-term basis. The Doctor stole his when he left his homeworld.
Tailkinker ★