Cheers: Season 4, Episode 25

4 - 25: Strange Bedfellows (2)

Sam and Janet's relationship is getting stronger and stronger whilst Diane gets more jealous. Janet suggests that Sam fire Diane to sever all ties with his past, but Diane overhears and quits before he can fire her. Vera's sister Donna is visiting the Petersons and Norm is worried that Donna will flirt with him like she did on her last visit.