(1987-1994, Starring Sir Patrick Stewart, Jonathan Frakes, Lavar Burton, Brent Spiner, Gates McFadden, Marina Sirtis, Michael Dorn, and Wil Wheaton; TV-PG)
S2.E9 A formal hearing is convened to determine whether Data is property without rights or a sentient being, after a scientist seeks to disassemble him to understand how he works—with the goal of creating an army of Datas to serve the Federation. A commonly cited episodes in Star Trek for its depth, it delves into philosophical questions about what defines life, the rights of sentient non-human beings, and slavery.
