Voyager, Season 2
Airdate: February 19, 1996
35 of 168 produced
34 of 168 aired
Voyager answers the distress call of a lone Vidiian. The Doctor changes her life when he creates a healthy holographic avatar for her consciousness to live in during her body's treatment.
Fun fact: All those CO2-spewing machines eventually get shipped to Mars for the purposes of terraforming.