ChicagoEpguides reported that at 0:22:42 the voiceover from Howard da Silva at the beginning of episode 2 is mistakenly retained ("The signal from the missing ship grows stronger as the crew plummets to the underworld.")

Outro: Next week, The Doctor returns to his home planet of Gallifrey to claim his position as president. Then, to everyone's horror, he makes an astonishing decision. Be with us next Friday night at 11 and witness "The Invasion of Time." [source: ChicagoEpguides]