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Greek, season 3 episode 16 «Your Friends and Neighbors»: air date March 1, 2010. Episode overview, season trailer and the cast of Greek.
The Hilgendorf family has moved in next door to the Kappa Tau house, and their presence is putting a damper on the KTs' festivities. When their rules get to be too much of an interference, Rusty and Cappie decide to "borg" Professor Tom Hilgendorf - i.e., to bring him in and make him a KT pledge. Once inducted into the Kappa Tau world, Tom doesn't seem to want to leave, making Cappie rethink his plan to eventually graduate.