Cheers Season 7 (1988)

Rebecca is still smarting from Evan Drake's departure to Japan. So instead of men, she focuses her energies on furthering her career - she figures that Evan Drake took all the key players from the company to Japan with him, and thus all those that knew she is a "washout" are now all gone - and buying a Mercedes. But realistically, her defenses are weakened, so when Sam asks her out again, she accepts, albeit without much enthusiasm. Just as Rebecca and Sam are about to go on their first date, Rebecca's new boss, Greg Stone, comes to the bar. Rebecca, having a boss fixation, drops Sam at the sight of Mr. Stone. For her, it is love at first sight all over again. He bursts her bubble though. He figures the bar did better under Sam's direction, so he appoints Sam as the new manager and fires Rebecca. This news sends Rebecca into a deep shock, but also makes Sam miserable as he hates managing a bar in a corporate style...