Given the task definition and input, reply with output. Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : Timelash is the fifth serial of the 22nd season in the British science fiction television series Doctor Who, which was first broadcast in two weekly parts from 9--16 March 1985.
Answer : Doctor Who
What series is Timelash a part of?