Doctor Who: The Collection - Season 23 [12] Blu-ray Box Set

The episodes are: 'The Mysterious Planet: Part One', 'The Mysterious Planet: Part Two', 'The Mysterious Planet: Part Three', 'The Mysterious Planet: Part Four', 'Mindwarp: Part Five', 'Mindwarp: Part Six', 'Mindwarp: Part Seven', 'Mindwarp: Part Eight', 'Terror of the Vervoids: Part Nine', 'Terror of the Vervoids: Part Ten', 'Terror of the Vervoids: Part Eleven', 'Terror of the Vervoids: Part 12', 'The Ultimate Foe: Part 13' and 'The Ultimate Foe: Part 14'.