1x13 - The Starlost

Oro (Walter Koenig) returns to the Ark to pilot the ship to his home planet of Xar. Granted special Gold Security Clearance and summoned peremptorily to Master Control Devon is surprised to find all the Ark systems monitored by mobile robots commanded by Tau Zeta, a "female" holding flag command rank. But the real power is exercised by Oro, (of "The Alien Oro" episode) who has been sent back to the drifting space vessel to seize it as "salvage" for the planet Xar. To our 4rloD however, Oro represents this trip to landfall a~ a generous act to solve the Ark's problems. To get back to their own lives quickly, Rachel and Garth welcome Oro's leadership and support him. But Devon, who learns from the computers that life on Xar, for humans, would be at the level of vegetables, resists. Oro challenges Devon to a "debate to the death", to be scored objectively by the computers on a game-show type of scoreboard. Though Oro is a superior being, Devon defeats him because the computers, built by humans