Sam and Diane separate for a week to re-evaluate their relationship.

Diane is furious, when she sees that Sam and her old school chum find each other very attractive.

Latka is worried that Simka's wacky behavior might cost her the right to remain in America permanently.

Felix urges Oscar's co-worker (Marilyn Horne) to join his opera group.

Bob is faced with the possibility that his younger sister may move in with Howard.

Dick (Bob Newhart) thinks that the station's temporary receptionist is perfect for the job. With Mary Frann.

Ralph and Ed wind up on the wrong side of the law in Paris after becoming unwitting pawns in a counterfeiting operation with fake francs.

Army life takes on a new meaning for Bilko.

The Rat Pack meets The Burnett Bunch when Peter Lawford guests; sketches include Lawford wooing his mail order bride, Carol, on an Amazonian plantation; Minnie Pearl delivers her down-home country style of comedy.Guests: Peter Lawford, Minnie Pearl..

Dobie's rival, now a boxing champ, visits.

Miss Brooks is ordered to find out what's wrong with star baseball player Bones Snodgrass and finds out he's in love with Suzy Prentisss.

A would-be actress works odd jobs while waiting for her big break.

Sister Bertrille manages the convent baseball team to a great moral victory.

Michelle schemes to match Danny up with her kindergarten teacher (June Lockhart).

When D.J. gets her own room, Michelle is forced to share a room with Stephanie.

Danny tries to help after classmates brand D.J. a bad kisser.

When Jesse gets too wrapped up in writing a hit song, a stranger helps him see things in a different light.

Mike attempts to surprise Carol with a photograph of the children for their anniversary.

Mrs. Beasley must go to the doll hospital for repairs.

Rusty refuses food after Danny forbids a trip.

No one tells Jeff his impersonations are awful.

Steve and Bub suddenly speak Spanish after sleeping in Mike's bed.

Robbie gets an attractive new study partner for world literature.

When Mr Mooney instructs Lucy to deliver some papers regarding the financing of John Wayne's latest movie, she ignores him and finds herself having lunch with Wayne instead.

Lucy and Mr. Mooney serve as volunteers in a hypnotist's nightclub act.

Stay informed with the latest breaking news and headlines.

Fonzie suffers a case of stage fright when he makes his singing debut at the big dance.

Laverne and Shirley have to run an obstacle course in order to qualify for police work.

A Japanese submariner holds the castaways prisoner on their own island.

Gilligan unearths a chest, which the castaways think contains a pirate's treasure.

A woman chooses between Stubing and Doc; a couple's newly adopted.

Twins decide they want each other's fiances; a dummy helps a ventriloquist team's marriage; a widower with daughters proposes to Julie.

Mama leads a senior-citizens' tap-dancing troupe.

Mama appears on the.

The numbers king of the neighborhood commissions J.J. to paint a portrait.

Michael's research for a bicentennial report leads to strange happenings for the Evans family.

Fred pretends to suffer from whiplash when he has an accident in the pickup truck.

Fred schemes to get Lamont to marry a distant cousin in the hopes of obtaining her dowry.

Edith's honesty infuriates Archie when he learns that she left a note on an unoccupied car that she dented.

Archie jumps at a $35,000 offer to sell his house to a black buyer.

The man who saved Mac's life in Vietnam appears in court and asks Mac to do an illegal favor for him.

A veteran actor contemplates suicide when a lawsuit prevents him from portraying the Western hero that made him famous.

As a gag, Sally advertises for a husband on a national television show.

Rob and Laura remember the time they completed an application for a $10 divorce.

A wealthy customer discloses that the Cheers gang will be remembered in his will.

Carla asks Sam to accompany her to her ex-husband's wedding ceremony to his blonde bimbo Loretta.

The cabbies drive from New York to Miami so Alex can spend 20 minutes between planes with his long-lost daughter.

Felix's brother, Floyd, persuades Felix that his place is not in hectic Manhattan but back home in Floyd's factory.

Bob takes two of his therapy groups to a rustic retreat for a marathon session that never progresses further than everyone's complaints about the primitive conditions of their accommodations.

Mr. Vanderkellen wants Michael and Stephanie (Peter Scolari, Julia Duffy) to set up a prenuptial agreement.

While in Germany, Ralph and Ed get lost and end up in East Berlin and must prove they aren't spies.

Bilko sees a rich GI as a ticket to saloon ownership.

For a guest like Tim Conway, Carol's door is always open; Tim's engagement ring for Carol, made from the cursed Hope Diamond, causes no end of bad luck; a musical performance by Shani Wallis.Guests: Tim Conway, Shani Wallis..

Dobie must reform Herbert to win a girl.

When evidence suggests that Mr. Boynton broke into Principal Conklin's office, stole his typewriter, and made a long distance call, Conklin stakes out his office by hiding in a suit of armor.

A would-be actress works odd jobs while waiting for her big break.

Sister Bertrille almost becomes an overnight sensation in show business.

Joey insults Ranger Roy on the same day he auditions as a replacement for the retiring children's TV-show host.

D.J. brings her adopt-a-grandparent friend (Whitman Mayo) home for dinner; Jesse agrees to be pregnant for a day.

Danny dreams that Stephanie dances on Broadway; Rebecca cons Jesse into attending her baby shower.

The 100th episode looks back at the first four seasons, then Rebecca has twins.

Bobby and Cindy try to prove their worth by setting a new world's teeter-totter record.

When the baby sitter falls ill, her father fills in.

Bad-cook Bunny prepares a meal for a gourmet.

Mary plans to enliven her party with a rock pianist.

Chip's baffled when he's assigned to write a composition about his mother.

Mike's (Tim Considine) in charge when Steve and Bub (Fred MacMurray, William Frawley) are called out of town.

Lucy goes to a psychiatrist after seeing a monkey everywhere she goes.

An efficiency expert launches a one-man assault on Mr. Mooney's bank.

Stay informed with the latest breaking news and headlines.

Howard sues Fonzie when a pigeon coop on top of the garage caves in the roof.

Laverne is asked to go to a debutant ball with Lenny and they discover that he is a Polish count.

A mob leader and his henchmen fleeing from the police land on the island.

In a test of a deadly new missile, the Air Force zeros in on the castaways' island.

One of Doc's ex-wives wants him back; a marriage counselor wants his marriage to be open; a woman panics when an old love appears.

Gopher is asked to manage a resort hotel; a rich widow plans to live on board; a magician substitutes for his magician brother.

Surprises and romance await the Harpers in Hawaii.

Mama, vacationing in Hawaii, plans to avoid the man she saved from drowning.

When an old girlfriend visits J.J., she brings along some upsetting news.

Fed up with being treated like a servant by her family, Florida accepts a luncheon invitation from a man.

Fred's fiancee brings a patient who is under her care to dinner at the Sanford home.

When Fred gets a toothache, he insists that Lamont find a white dentist to cure him.

Stress over upcoming exams leaves Mike impotent. Archie offers advice, only making Mike's stress levels rise.

Archie's day turns from bad to worse when, after being told that he must lay off one of his men, he learns the insurance on his home has been canceled.

Harry fights with a man threatening to destroy an original draft of the Constitution; Roz's illness concerns the staff.

Harry reasons with the man who is threatening to destroy an original draft of the Constitution; Roz has diabetes.

While out of town for a cousin's wedding, Rob has to watch a special show.

Buddy is either seeking therapy or having an affair.

Sam questions Norm's abilities when he hires him as an accountant.

Sam and Diane want to spend some time alone together, but the lonely Coach keeps joining them.

Tony gets a call from the gym to be a sparring partner for a world-champion boxer.

Felix reunites his college band in hopes of appearing on a TV show.

Jerry suggests that all the doctors in the building form a co-op to treat each other for free. This leads to chaos and hostility that find expression in Bob's special all-doctor therapy group.

Dick's (Bob Newhart) show is canceled, but Michael (Peter Scolari) plans to have him star in a new program.

While in Germany, Ralph and Ed get lost and end up in East Berlin and must prove they aren't spies.

Bilko is off to Hollywood to serve as technical adviser for a film.

Sid Caesar and Barbara McNair are Carol's guests tonight; McNair and Carol spoof a classic TV series; V.I.P. features a talk with silent film stars played by Carol and Sid.Guests: Sid Caesar, Barbara McNair..

The Gillis men try to manage without Wini.

Connie misinterprets Mr. Boynton's proposal to join him in running a summer camp as a marriage proposal. Things become even more complex when Principal Osgood wants to become involved and she thinks he's proposing, too.

A would-be actress works odd jobs while waiting for her big break.

Sister Bertrille gives a shy priest the confidence to face San Tanco.

The 100th episode looks back at the first four seasons, then Rebecca has twins.

Jesse panics when he accidentally mixes up the only means of telling the twins apart; Danny likes his temporary co-host.

Danny has more dates than he can keep after a San Francisco magazine names him bachelor of the month; Danny is more interested in his new co-host.

Michelle blames Joey for her fall while learning to ride a bike.

Annoyed at being so small, Bobby tries exercises to make himself taller.

Bill decides to give up traveling to spend more time with the children.

Jose wants his nephew on Danny's TV show.

The Stones meet celebrities while in Hollywood.

Bub pretends to be a show business producer to impress a fellow night-school student.

Steve steps in when Robbie's band rehearsals disrupt the Douglas house.

Lucy discovers that her temporary replacement is bent on stealing her job.

Lucy and visiting Viv search for a supposed derelict.

Stay informed with the latest breaking news and headlines.

Richie, Potsie and Ralph stage a beauty contest in an attempt to meet girls.

Laverne has a dream that she and Shirley are in their 80s and neither are married.

Gilligan meets a jungle boy and the castaways try to teach him English.

Angry because the men haven't kept their promise to build them private houses, the women move away.

A widower and his son fall for the same girl; a bachelor is allergic to marriage; Stubing tries to rehabilitate a teenage shoplifter.

Stubing is considered for a prestigious command; a woman makes a date with a friend's fiance; an ex-surgeon criticizes Doc's practice.

Mama comes to the rescue when Bubba's prom date cancels at the last minute.

Mama opens her house to boarders with hopes of raising money for a new stove.

Thelma's indecision turns to agony when Harry accepts a new job and moves to California.

As the Evanses prepare to join James in Mississippi, a damper is thrown on everything.

Fred is convinced that Lamont's card-playing buddies are trying to take him for all his money.

A burglar leaves his gun in the Sanford house after Lamont and Rollo scare him off.

A news reporter conducting a man-on-the-street interview talks with Archie.

Edith's favorite cousin comes to the rescue when Archie gets the flu.

Dan's world has come crashing down: he's suffering from impotence. Meanwhile, Harry is given a personal assistant, a blind woman with a terrible attitude.

A Christmas Eve blizzard strands the staff in the courtroom with a group of defendants. With Harry Anderson and John Larroquette.

The Helpers' anniversary bash becomes a documentary.

Thinking he is going to lose his job, Rob has an interview with a ventriloquist.

Cliff's know-it-all attitude finally gets him into a fight with another patron.

When Coach buys an antique scale that also prints out fortunes, the gang finds them coming true.

Intrigued with the voice on Bobby's answering service, Alex asks the girl out to dinner.

Felix develops a severe case of insomnia, and Oscar tries to help him.

For the sake of their marriage, as well as Emily's Master's Degree and Bob's heavy work schedule, the Hartleys decide that it would be best if they took up separate residences.

Stephanie (Julia Duffy) takes over as leader of a troop of Ranger Girls. With Bob Newhart.

Ralph has misplaced jealousy for Alice's Italian tour guide, who turns out to be a young boy.

Bilko learns that Congress is planning to examine wasteful military projects.

Guests include Martin Landau, Barbara Bain and Carol Channing.Guests: Martin Landau, Barbara Bain, Carol Channing..

A teenager aims for beautiful women, fancy cars and money.

Two thieves who have stolen expensive women's clothing hide from the police in Madison High and trick Miss Brooks into thinking the clothes are hers for an advertising campaign.

A would-be actress works odd jobs while waiting for her big break.

Sister Bertrille has to prove who owns a baby left on the doorstep.

D.J. the baby sitter fears the repercussions when Michelle and Stephanie are caught trying to sneak into a movie theater.

Jesse plays with an.

Stephanie and D.J. are star struck when Danny brings Tommy Page home to sing at Stephanie's birthday party.

Stephanie challenges the winner (Jared Leong) of the school spelling contest to a one-on-one competition.

Greg Needs $150 to record his original song so he convinces his siblings to join him. They notice that Peter's voice is crackling due to puberty and have to decide to record with or without him.

Buffy decides that she's tired of being treated like a child.

Danny and Bob Hope try hiding in a small town.

Mary convinces a theater group to let Donna direct.

Robbie does not want to join Mike's old school clubs.

Feeling ignored, Chip decides to run away to India.

Lucy goes to the aid of a small town in a war against freeways.

The citizens of a small town throw a party in honor of Lucy and Mr. Mooney.

Stay informed with the latest breaking news and headlines.

Fonzie is thrust into the role of father when he has to discipline Spike.

The girls decide to help Carmine raise the money to start his own dance studio.

The castaways have an unexpected visitor: a surfer from Hawaii who came in on a tsunami.

A gorilla is enchanted by Mrs. Howell's perfume and kidnaps her.

Isaac loves a girl (Debbie Allen) considering marriage; an heiress thinks men just want her money; a dog rejects its mistress' suitor.

Julie's friend falls for Stubing; Gopher helps his neighbor find romance; overprotective offspring pursue an eloping, elderly couple.

When Naomi is stricken with amnesia, Mama hopes to turn her into the perfect housewife.

Mama and Bubba almost miss high-school graduation.

Florida's attitude toward James' death causes dissension in an already saddened household.

Thelma's favorite teacher falls first for J.J.'s paintings and then for J.J.

Fred is beside himself when his new Puerto Rican neighbor opens a competing junkyard.

Fred accidentally fires an antique gun and fears the worst when his neighbor doesn't answer.

Archie is depressed because he did not get his usual Christmas bonus.

Archie gets trapped in an elevator with a neurotic secretary, a wealthy black lawyer, a pregnant woman and her husband.

Dan (John Larroquette) is handcuffed to a time bomb; Bull's blind girlfriend (Elayne Boosler) tries to heat up their relationship.

Christine must tell her father, who moved in with her, that he has overstayed his welcome.

The Petrie home becomes a command post when government agents move in.

Rob, Buddy and Sally are in trouble when their script insults the boss.

Diane tries to keep Sam from going on a ski weekend with the guys.

When an old friend dies, Coach decides to hold a memorial service for him in the bar, inviting all of their old friends, but then Coach discovers that the deceased once made a pass at his late wife.

Bobby decides that if he doesn't get an acting job before midnight he will end his stage career.

When Felix becomes a member of the Civilian Police Reserves, havoc reigns for criminals and innocent bystanders alike.

As Howard prepares to introduce Howie to Ellen, he tries to mold Ellen into an image the boy will like.

Michael (Peter Scolari) believes Joanna (Mary Frann) may be having an affair. With Bob Newhart.

Ralph has misplaced jealousy for Alice's Italian tour guide, who turns out to be a young boy.

Bilko baby-sits in a trailer for a GI on furlough.

Nanette Fabray and Trini Lopez guest star; sketches include Carol and Nanette as a pair of precocious, 5-year-olds and an episode ofGuests: Nanette Fabray, Trini Lopez..

Dunky tells a girl that Dobie is an alcoholic.

After seeing Conklin with literature from Alcoholics Anonymous, people think he has a problem.

A would-be actress works odd jobs while waiting for her big break.

A little orphan wants Carlos to adopt him.