ST:TNG:29 - "Elementary, Dear Data" (Stardate: 42286.3) - this is the 3rd episode of season 2, in which The Next Generation gets one of its more memorable characters in the form of Daniel Davis as Professor James Moriarty (a character he will portray again in the 6th season episode "Shp in a Bottle". This episode revisits Data's fascination with Sherlock Holmes which we first see in the first season. It's also interesting to note that even a Holodeck environment can be used dangerously if one is not careful because La Forge was able to create an adversary greater than "Data", or as Picard describes it, his "Nemesis." And, it's a riot to see Worf dressed up in 19th century London garb complete with gloves! This is one of the better TNG episodes.
Review of Elementary, Dear Data
