Epsilon Gamma
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Epsilon Gamma was an asteroid in the Epsilon cluster. The Third Doctor visited Epsilon Gamma and met with its delegates. While not in their presence, he told Jo Grant that he disliked the asteroid because of the over-advertising that took place. Micro Servo Robots were used to carry out advertising campaigns. Jo Grant took a damaged MSR into the Doctor's TARDIS when they left. (PROSE: Pop-Up)