The memorable "Pivot!" scene from Friends occurs in the episode titled "The One with the Cop," which is the 16th episode of the 5th season. In this episode, Ross buys a new couch for his apartment and refuses to pay the delivery charges. He recruits Rachel and Chandler to help him move it up the stairs, leading to the classic comedy moment where Ross repeatedly shouts "Pivot!" as they struggle to maneuver the couch around a difficult corner. This episode originally aired on February 25, 1999. It's one of the many examples of the show's brilliant comedy writing and is definitely a must-watch for any Friends fan.