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Season 1 - Sep. 28, 1987
Season 2 - Nov. 21, 1988
Season 3 - Sep. 25, 1989
Season 4 - Sep. 24, 1990
Season 5 - Sep. 23, 1991
Season 6 - Sep. 21, 1992
Season 7 - Sep. 20, 1993
Star Trek: The Next Generation Season 7 Episode 17
HD
Overview:
Stardate: 47615.2. The Enterprise is slowly transformed into an ancient alien temple when Data discovers an alien archive full of information about an ancient culture. Shortly after opening the archive, Data becomes possessed with several different personalities.