Revealing Mistakes: At the climax of the episode, the ground on which the Doctor stands wobbles up and down as his weight shifts on the covered platform protecting the actors beneath him.
Revealing Mistake: The harpoon shot at Glitz is clearly traveling along a wire.
Factual Error: The Master makes the usual mistake of referring to Earth "and its constellation". He means its solar system.
Do the Time Lords know who the Master is or not? In Terror of the Autons, they do. In The Deadly Assassin, they do not. In The Five Doctors, they do. Here, it appears that they do not.
The Master: There is some evil in all of us, Doctor, even you. The Valeyard is an amalgamation of the darker sides of your nature, somewhere between your twelfth and final incarnations. And I may say, you do not improve with age.
The Inquisitor: You say you were sent here, Sabalom Glitz. By whom? The Master: By me, madam. The Doctor: Oh no, now I really am finished!
The Doctor [ on the Valeyard ]: He's playing games. Wants to humiliate me first. Glitz: Oh, I see. He humiliates you by throwing harpoons at me. Makes a lot of sense.
The Doctor: In all my travelling throughout the universe I have battled against evil, against power-mad conspirators. I should have stayed here. The oldest civilisation: decadent, degenerate, and rotten to the core. Power mad conspirators, Daleks, Sontarans, Cybermen. They're still in the nursery compared to us. Ten million years of absolute power. That's what it takes to be really corrupt!
Novelisation: Parts Thirteen and Fourteen of The Trial of a Time Lord were novelised as Doctor Who - The Ultimate Foe by Pip and Jane Baker (ISBN 0 426 20329 1) first published by W H Allen in 1989.
After the Doctor enters the Matrix, the Master testifies that Peri is still alive, and is married to King Yrcanos.
Robert Holmes was commissioned to write the final two episodes, under the working title of Time Inc., but died having completed only a rough draft for Part 13. Script Editor Eric Saward rewrote the latter scenes of this episode to accommodate a new Part 14.
S 26 : Ep 11
Aired 11/15/89
S 26 : Ep 10
Aired 11/8/89
S 26 : Ep 9
Aired 11/1/89
S 26 : Ep 8
Aired 10/25/89
User Score: 21970
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User Score: 522
User Score: 180
User Score: 151
User Score: 113
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User Score: 88