It's the cozy little Boston bar where everybody knows your name - welcome to Cheers - the Emmy Award-winning, smash-hit television series that kept the laughs uncorked for 11 years. It's a new beginning for the bar - and for the gang - in Cheers: The Complete Sixth Season. After selling the watering hole to a large corporation six months earlier, Sam Malone (Ted Danson) is back from "retirement" - and looking for a job. Holding his employment hopes in her hand is the bar's new manager, the acerbic and neurotic Rebecca Howe (Kirstie Alley). But still hanging around - and ready to watch the Malone-Howe fireworks