What a timeless series. If you never saw it or weren't alive when it aired, get Netflix and tune in.
But I digress ...
Kristie Alley (Rebecca Howe) started in season 5 when Diane left as the new manager of the bar that Sam had sold to a corporation. Sam was depressed that Diane left, so he bought a boat, he sold the bar and ultimately begged for a job at the bar when his boat sank. Sam tried to woo her but Rebecca became more neurotic in each season, dated rich guys and Sam lost interest eventually. When he bought the bar back, Rebecca was the one to beg for a job later.
Anyhow ... watch it when you get a chance. It's still one of the best comedies ever written. I gotta go. Carla just married hockey player Eddie LeBec when he found out she was pregnant with twins but he lost his job and ... oh I don't want to spoil it for you.