第 9 季 共 27 集
播出时间：1990年9月21日
第 1 集 Love Is a Really, Really, Perfectly Okay Thing
播出时间：1990年9月21日
In the afterglow of their intimate encounter, Rebecca becomes determined to deny that it ever happened, to the gang at the bar, to Robin and to herself.
第 2 集 Cheers Fouls Out
播出时间：1990年9月28日
Sam tries to beat Gary at his own game in a grudge basketball game by recruiting Boston Celtics' star Kevin McHale as a substitute bartender at Cheers.
第 3 集 Rebecca Redux
播出时间：1990年10月5日
Sam hires a new bar manager that everyone seems to like, then learns how low Rebecca has sunk in her pursuit of new employment.
第 4 集 Where Nobody Knows Your Name
播出时间：1990年10月12日
Rebecca is secretly very upset when one of Robin's previous lovers goes public claiming to be his current affair.
第 5 集 Ma Always Liked You Best
播出时间：1990年10月19日
Cliff gets very hurt and upset when his mother decides that Woody is the son she never had, and Norm gets caught in a window.
第 6 集 Grease
播出时间：1990年10月26日
Norm nearly has a cow when he hears that the Hungry Heifer is closing down, and mounts an all-out campaign to keep it going, while Rebecca frets over seeing Robin as he works in the street nearby as part of a road gang.
第 7 集 Breaking In Is Hard to Do
播出时间：1990年11月2日
Lilith and Frasier try to cope with the fact that their son needs more care from them while Rebecca and Carla try to figure out how Rebecca can pay Robin a conjugal visit in jail.
第 8 集 Bad Neighbor Sam
播出时间：1990年11月16日
A panel discussion with the cast of Cheers after their 200th show hosted by John McLaughlin.
第 9 集 Veggie-Boyd
播出时间：1990年11月23日
John Allen Hill, a famous Manhattan restaurateur, has bought Melville's, which Rebecca thinks is going to boost business for Cheers. Hill and Sam's relationship starts off slowly and gets worse and worse. The first spoken threat from Hill is the fact that he actually owns the property of the bar's pool room and wash rooms, implying that he wants Sam to meet all his demands or else.
第 10 集 Norm and Cliff's Excellent Adventure
播出时间：1990年12月7日
Woody has a starring role in a television commercial for a new health drink called Veggie-Boy. Woody is excited before the commercial shoot, during the commercial shoot and after the commercial shoot. It isn't until the commercial starts to air that Woody's excitement turns to horror. In the commercial, Woody explicitly states that he likes it, referring to Veggie-Boy, but he finally tastes it afterward and hates it. This endorsement is a lie from a man who doesn't lie.
第 11 集 Woody Interruptus
播出时间：1990年12月14日
Woody has developed a disease: Home-Shopping-Channel-itis. He has just discovered the channel's existence, and can't stop buying stuff from it. He realizes the stuff he is buying is crap, but just can't help himself.
第 12 集 Honor Thy Mother
播出时间：1991年1月4日
Kelly returns from Europe with a new French boyfriend and Cliff decides to have his head cryogenically frozen before he dies.
第 13 集 Achilles Hill
播出时间：1991年1月11日
Carla's formidable mother demands on her deathbed that Carla name one of her children "Benito Mussolini."
第 14 集 The Days of Wine and Neuroses (1)
播出时间：1991年1月25日
Sam decides to settle his feud with John Hill by dating the man's daughter and Carla fears that the foosball table is possessed.
第 15 集 Wedding Bell Blues (2)
播出时间：1991年2月1日
The bar's jukebox is going in for repairs, and for the week while it's away, Cheers gets a karaoke machine in it's place.
第 16 集 I'm Getting My Act Together and Sticking It in Your Face
播出时间：1991年2月8日
Rebecca awakens on her wedding morning raring to go, and seems determined to ignore Sam's attempts to remind her of her doubts, and Righteous Brother Bobby Hatfield upstages Frasier.
第 17 集 Sam Time Next Year
播出时间：1991年2月15日
Rebecca has trouble accepting the fact that she cancelled her wedding with Robin and Frasier translates Dickens' classic prose into Boston vernacular.
第 18 集 Crash of the Titans
播出时间：1991年2月22日
On Valentine’s Day, Sam winds up laid out due to back trouble on the 20th anniversary of his annual tryst with Lauren.
第 19 集 It's a Wonderful Wife
播出时间：1991年3月1日
Rebecca decides on a new goal in life and begins by flattering John Hill in an effort to get his lease for the bar.
第 20 集 Cheers Has Chili
播出时间：1991年3月15日
Norm develops a rich paranoia and decides to look for another bar when wife Vera gets a job upstairs at Melville's, and Lilith helps the gang celebrate Frasier's birthday.
第 21 集 Carla Loves Clavin
播出时间：1991年3月22日
Rebecca wants to serve Woody's chili in the poolroom despite Sam's heartfelt objections.
第 22 集 Pitch It Again, Sam
播出时间：1991年3月29日
Carla faces the hardest task of her life when she tries to be nice to Cliff after learning he's one of the judges for the Miss Boston Barmaid competition.
第 23 集 Rat Girl
播出时间：1991年4月5日
Sam's old baseball rival shows up to goad Sam into a final round on the mound, but Sam isn't too sure he wants to go.
第 24 集 Home Malone
播出时间：1991年4月26日
Lilith grieves over the death of her favorite lab rat while bar support Paul proves an unlikely target for a sexy seduction.
第 25 集 Uncle Sam Wants You
播出时间：1991年5月3日
Sam enters a whole new world when he babysits for Frasier and Lilith, and Woody worries about Kelly when she goes to work at Cheers as part of a school project.
第 26 集 Uncle Sam Wants You.
播出时间：1991年4月26日
When Sam finds it difficult to back away from Frasier’s son, he decides to have one of his own—if only he can find the right mommy.
第 27 集 Episode 27
播出时间：1991年5月3日
