Lucy and Viv are tired of the same old dates on Saturday nights. When Jerry's handsome math teacher Mr. Taylor (William Windom) shows up at the door, Lucy just has to know if he is single.
After maneuvering to get his wallet, checking his driver's license, and returning the wallet all without his knowledge, Lucy discovers she has forgotten to put the license back in the wallet and must now find a way to return it without him knowing. She and Viv sneak into the YMCA where he's staying to secretly return it.
Special Notes: This episode introduces Dick Martin as next-door neighbor, and sometimes date, Harry Conners.