Task: Question Generation
Input (English): Context : The Power of the Daleks is the completely missing third serial of the fourth season in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 5 November to 10 December 1966. 
Subject : The Power of the Daleks 
Relation : series
Output (English): What is the series that The Power of the Daleks is a part of?