Tim Cunningham

Coach's likeable daughter Lisa stops by Cheers to introduce her fiancé, the slick, unscrupulous Roy, who treats her shabbily and offends everyone.

Sam decides to sell the bar and move to California with Diane.

Diane's encounters with Derek, Sam's older brother, culminate in Derek asking her to accompany him to Europe, but the situation brings to light certain elements of Sam and Diane's relationship.

Diane uses Sam as the subject of her psychology term paper.

Sam and Diane agree to allow each other 24 hours of reckless abandon before they get married.

Sam is reacquainted with his old flame Diane Chambers after six years apart, and they both lie about their happiness.