The Ambassadors of Death was the third story of Season 7. It was the Third Doctor's first adventure into space without the use of his TARDIS. It also featured the first instance the TARDIS console was shown in colour format, and for that matter, removed from the TARDIS entirely. The Doctor had disconnected it and moved it to a study room inside UNIT headquarters now that his TARDIS was rendered inoperative, needing to utilise it in his experiments.