Star Trek: The Next Generation
Season 2
Episode 3: Elementary, Dear Data
TV-PGDec 05, 1988
Stardate: 42286.3. Data and Geordi become involved with a holodeck program about Sherlock Holmes and his investigations, when they create Sherlock's arch nemesis, Moriarty; however, modifications to the Moriarty character include the capability of out-smarting Data, which leads to some unexpected consequences.