: This episode is available to stream on platforms including BritBox and YouTube TV .
: This story is notable for its heavy use of early blue-screen technology (Chroma Key) to create the vast, cavernous underground settings. "Doctor Who" Underworld: Part One (TV Episode 1978) - IMDb [S15E17] Underworld 1
: The Doctor reveals that the Minyans are "old friends" of the Time Lords. Thousands of years ago, Time Lords intervened on Minyos, but the Minyans eventually used the gifted technology for civil war, leading to the Time Lords' strict policy of non-intervention. : This episode is available to stream on
: The crew of the Minyan ship R1C , led by Captain Jackson, is searching for the P7E , a lost colony ship containing their race's genetic banks. Time Lords intervened on Minyos