Doctor Who and the Deadly Assassin

At the end of 'The Hand of Fear', the Doctor was summoned back to Gallifrey. This story is the first in which the Doctor appears without a regular companion, and it goes a long way to establish what we know about the Doctor's home planet. For some people, this made the Time Lords real, for others it ruined the concept.The story depicts the Time Lords as a very political, short-sited group. Their President is assassinated, and it appears that the Doctor is responsible. The Doctor is, more or less, assisted by his old teacher, Cardinal Borusa, who plays a substantial role in the background. This relationship between former teacher and pupil is central to several later stories.This story also sees the return of... But the would be telling!Personally, I think this story betters the Doctor Who universe, because the prospect of omnipotent Time Lords sitting off at the side watching things really doesn't fit with what we have seen them do to this point.