WTTW edited the story into two parts, with the break made during episode three when the Adminstrator instructs the Engineer to kill the Doctor and companions once they are seated in the reception room. [source: ChicagoEpguides]

Intro: What would call a race all of whose members are identical? Boring? Not necessarily as we will soon discover when the TARDIS lands on a gigantic spaceship from 28th century Earth which is controlled by "The Sensorites."

Outro: Why have so many of the Sensorites died? The mystery is probed with the Time Lord's acumen in the conclusion of "The Sensorites," next Sunday night at 11. [source: ChicagoEpguides]