Doctor Who episode 536: Full Circle – Part Three (8/11/1980)
Tom Baker’s confrontation with the Deciders is brilliant. Mere minutes after they pardoned their own children, with great solemnity and pomp, their authority crumbles before the Doctor’s coldly furious verbal assault, as he accuses them of the responsibility for deceiving the community and permitting the slaughter of another child. In a season that already contains his brilliant performance as Meglos, this is Baker at his electrifying best. Cancel the resignation: he can wipe the floor with these people.