The newlywed Sondra and Elvin return from their honeymoon with shocking news for Cliff and Clair: they want to abandon their dreams of being a lawyer and doctor and open an outdoorsman's "wilderness store." Geoffrey Owens (Elvin) becoms a regular cast member.

Theo and Cockroach come home unusually late from a track meet, and the Huxtables got a phone message earlier from the track coach. They both deny anything out of the ordinary happened, but attorney Clair knows better. A mock trial is held for Theo and Cockroach at the Huxtables' for Clair to get to the bottom of the situation.

Rudy wants to wear summer clothes in winter to a party, while Cliff tries to get rid of an old water heater.

While setting up the house as a "haunted house" for Halloween, Cliff discover's he's lost a power drill that his neighbor loaned to him. First appearance of Wallace Shawn as Jeffrey Ingalls.

Christopher Plummer and Roscoe Lee Browne appear. Theo must read Julius Caesar for school, but complains that it is boring. Russel and his friends read scenes from the play aloud, and Theo is enthralled. Later, the men read from a different work of literature-a story Rudy wrote!

Cliff and Clair have a marital argument after Theo gets detained by police for riding in a car with an unlicensed driver.

Rudy goes to an older widowed lady's house each afternoon to have tea and play cards, but notices that she refuses to take her daily medication for diabetes. She tells Cliff, who devises a plan to try to convince her that she needs the meds to live. Eileen Heckart appearance.

Keshia Knight Pulliam appears on the episode of A Different World which airs later that evening.

Sondra and Elvin have their first marital fight, and Elvin comes to the Huxtable house for comfort and support. Clair shares about the difficulties in their house as flashbacks are shown.

Flashbacks are shown while history is shared with Elvin.

Theo and Vanessa lose track of Rudy in a mall while Clair enters a squash exhibition.

Earle Hyman (Russell) appears on the episode of A Different World which airs later that evening.

Theo and Cockroach have tickets to appear on television on the dance show "Dance Mania", but are told that only one of them can enter the studio during the filming because of fire laws. Theo miscalculates by offering to let Cockroach go in (thinking he'll refuse) and gets angry when Cockroach takes him up on the offer.

Theo and his classmates brag about their dates with girls in the locker room, but Theo's mood changes when one of the guys goes out with Vanessa and brags about it the next day. Troy Winbush as Denny. Adam Sandler as Smitty.

Vaudeville is shown to Rudy and her friends, who are unimpressed.

Clair drags Cliff to her book club meeting, and he's the lone male there. Much to Clair's surprise, Cliff knows quite a bit about the book in question! Meanwhile, the kids attempt a sleepover at Sondra and Elvin's run-down studio apartment, but are overwhelmed by the noise and lack of utilities. Appearances by Angela Bassett and S. Epatha Merkerson.

Rudy has to play the violin in music class at school, but gets jealous because she thinks her classmates' instruments are more fun. Deon Richmond as Kenny. Naoka Nakagawa as Kim.

Theo visits a friend in the hospital who has cancer. Troy Winbush as Denny. Adam Sandler as Smitty. Special appearance by Armand Hammer.

Vanessa tries out for the drum major at school. Theo playfully mocks her efforts, but learns from friends that Vanessa is the target of sexism and intervenes on her behalf. Meanwhile, Cliff cooks up a batch of extremely spicy chili as Russell tries to pay off a loan from an old friend. Deon Richmond as Kenny. Troy Winbush as Denny. Guest appearance by Dub Taylor.

Clair tries to stop Cliff from fixing a leaky pipe by hiring a team of professionals: friends of Sondra and Elvin from Princeton.

Rudy writes a fairy tale, and the colorful story is acted out in her fantasy. Members of the family play the roles of a village full of happy people and a mean group that ruins their fun. At the end of the episode, Rudy declares that when she becomes "president of the world", she will put a stop to all mean people. Cliff and Clair proceed to watch news reports of weapons' testing and bombings, and urge her to "hurry, because we need you right now." Earle Hyman as Russell.

Cliff and a friend play pétanque. First appearance of Sullivan Walker as Dr. James Harmon.

A friend of Clair's has marital problems; Cliff takes a "mini-vacation" in the house as Theo, Rudy, and Vanessa try to stump each other with riddles.

Denise comes home from college, but seems to have more time for her friends than for the family.

Theo, Denny and Smitty go to great lengths to impress their dates for the senior prom but fail disastrously; Cliff and Clair relive their own prom. Troy Winbush as Denny. Adam Sandler as Smitty. First appearance of Michelle Thomas as Justine.

Phylicia Rashād appears on the episode of A Different World which airs later that evening.

When the Huxtable men go fishing, Theo catches a dead body, and soon attracts attention from the media. This success goes to his head, while Rudy and Kenny find a nest of baby birds, but the mother bird is missing. The two stories eventually cross in a surprising-and rather humiliating-lesson for Theo. Deon Richmond as Kenny.

As Theo begins his freshman year at New York University, Denise announces that she is dropping out of Hillman College. Sondra is revealed to be pregnant.

First mention of Cliff's theory that the children keep returning home because "they want the house."

Cliff prepares for a physical. John Amos as Dr. Bradley Herbert, Jr.

Rudy's friend sleeps over.

Everyone wants pregnant Sondra and Elvin to find a new house. Elvin's surname, Tibideaux, is revealed.

Denise leaves Brooklyn for a job in Africa (Lisa Bonet's last appearance of Season 5).

Sondra goes into labor, and Elvin is a nervous wreck.

Deon Richmond as Kenny. Michelle Thomas as Justine. First appearances of Reno Wilson as Howard, and Elizabeth Narvaez as Kara. Guest appearance by Naomi Campbell.

Sondra gives birth to twins—a boy and a girl—who are named after Nelson Mandela and his then-wife Winnie. Elvin decides to return to medical school.

Theo wants to date his friend Howard's ex-girlfriend, but he is stunned upon learning who she wants to date. Troy Winbush as Denny. Reno Wilson as Howard.

Vanessa, Janet and Kara want to be professional singers; Russell wins a prize in a sweepstakes, which turns out to be a toaster. Pam Potillo as Janet. Elizabeth Narvaez as Kara. Guest appearance by singer Betty Carter.

Clair secretly goes on a crash diet and exercise program to lose five pounds in a week so she can fit into a dress. Appearance by Debbie Allen; voice-over by Ahmad Rashād (Phylicia Rashād's sister and husband).

Rudy takes care of a friend's hamster for the weekend.

Rudy lies to cover for Vanessa, who secretly goes out on a date with her older boyfriend.

Cliff babysits Winnie and Nelson when the rest of the family goes to see a Michael Jackson concert.

Clair appears as a panelist on a local Sunday morning talk show entitled "Retrospective". Clair buys a new couch and Cliff tries to keep the old one. Clair's law firm is identified as Greentree, Bradley & Dexter.

With the rest of the family gone for the night, Theo throws a "small" party that gets out of control. Troy Winbush as Denny. Reno Wilson as Howard. First appearance of Alex Ruiz as Lou. Cameo appearance by Joie Lee.

Phylicia Rashād (Clair), Malcolm-Jamal Warner (Theo), Tempestt Bledsoe (Vanessa), and Elizabeth Narvaez (Kara) appear on the episode of A Different World which airs later that evening.

Cliff tracks down the grandfather of one of his patients: an expectant teenage mother with no other family. Clair deduces that the charming man is illiterate. Guest appearance by Sammy Davis, Jr.

Rudy wants to change some of her rules. Voice-over by Ed McMahon (from The Tonight Show Starring Johnny Carson).

Theo consults a voodoo shopkeeper for advice on winning his girlfriend back.

Troy Winbush as Denny. Reno Wilson as Howard. Alex Ruiz as Lou. Michelle Thomas as Justine. Guest appearances by Moses Gunn and Harold Perrineau.

Cliff's old basketball friend comes to visit. Guest appearance by U.S. Senator (and former NBA basketball player) Bill Bradley.

Sondra bemoans taking care of the twins.

After catching Theo kissing another woman in the lounge of her dormitory, Justine breaks up with him. Desperate to win her back, Theo turns to Cliff for advice. Michelle Thomas as Justine. First appearance of Vanessa A. Williams as Jade.

Clair's 46th birthday.

Vanessa and Rudy argue and fight. After the sisters do physical damage to the house, Cliff exiles them to the basement.

Theo's friend Denny finds an expensive watch and gives it to his girlfriend, but it is soon revealed to be stolen merchandise. Troy Winbush as Denny. Alex Ruiz as Lou. Vanessa A. Williams as Jade.

Sondra comes down with strep throat, prompting her mother Clair and Elvin's mother Francine to "steal" the babies.

Theo wants to go to Egypt for an archaeological dig. Reno Wilson as Howard. Alex Ruiz as Lou. Deon Richmond as Kenny.

Denise returns from Africa, with a new husband and stepdaughter in tow. Joseph C. Phillips and Raven-Symoné join the cast as Martin and Olivia Kendall. Last appearance of Peter Costa as Peter.

After recreating one of Cliff's stories, Theo and his roommates are kicked out of their apartment. First appearance of Keith Diamond as Danny. Guest appearance by Anthony Quinn.

Vanessa and her friends get drunk playing a drinking game. Pam Potillo as Janet. Elizabeth Narvaez as Kara.

Guest appearance by Bill Cosby's real-life daughter Ensa Cosby, upon whom the character Vanessa is loosely based.

Denise forgets to respond to a letter from the Navy and confirm that she and Martin want housing on the naval base in Rhode Island.

Theo is diagnosed with dyslexia, a learning disability which contributed to the academic problems he has had over the years. Michelle Thomas as Justine.

Denise and Olivia babysit Winnie and Nelson (Sondra and Elvin's twins).

Rudy and one of her classmates have a crush on each other, but peer pressure could ruin things. Guest appearance by Elaine Stritch.

Cliff dreams that men worldwide have become pregnant -- including his son Theo, his sons-in-law Elvin and Martin, and himself. Voice-over by NBC News correspondent John Palmer.

Denise invites Martin's ex-wife Paula for Thanksgiving dinner. Clair continues to send Cliff to the store for last-minute groceries, despite the fact that it is a cold and rainy Thanksgiving Day. Victoria Rowell as Paula.

Martin's parents (Olivia's grandparents) come for a visit. Actor Moses Gunn and jazz singer Nancy Wilson guest star as Martin's parents.

Cliff is in charge while Clair and Denise are out of town. Guest: Elaine Stritch as Mrs. McGee

As Christmas approaches, Cliff and Martin get to know each other better. Denise and Martin recreate their wedding ceremony, which allows Cliff to give his daughter away.

Elvin takes two female college friends to dinner to reminisce and Sondra becomes very upset.

Guest appearance by The Muppets (Performed by Jerry Nelson, Dave Goelz, Richard Hunt, and Kevin Clash.) Voice-over by Wallace Shawn.

Denise causes trouble while trying to help Vanessa get a date.

Olivia's 4th birthday.

Theo thinks about proposing to Justine. Kenny, who was "born to sing the blues," gets the chance to sing with a legendary blues singer/guitarist. Deon Richmond as Kenny. Michelle Thomas as Justine. Guest appearance by B.B. King

Rudy steals money from Clair to buy a sweatshirt (Rudy and her friend Kim do the Electric Slide). Deon Richmond as Kenny.

Rudy is forced to take tap dancing lessons for a school project. Cliff is presented with a "challenge" he cannot resist. Guest appearances by Howard "Sandman" Sims and Elaine Stritch.

Cliff, Elvin and Martin secretly compete to determine who is the most romantic husband in the Huxtable family.

Cliff and Clair discover that Theo has moved in with Justine. Last Appearance Of Michelle Thomas as Justine. Victoria Rowell as Paula.

Clair is burned out from work and family pressures and hurries off to the woods.

Vanessa and her friends sneak out of town to attend a concert in Baltimore, but encounter huge problems along the way. Afterwards, she must face the wrath of Cliff and an infuriated Clair.

The Huxtables' nerdy neighbor (Wallace Shawn) reinvents himself after a divorce.

Denise wants to become a teacher . . . without finishing college. Guest appearance by Max Roach.

"Gram Tee", Cliff's 98 year old great aunt, comes to visit the family.

Denise takes classes locally at Medgar Evers College, while Vanessa enrolls at Lincoln University in Pennsylvania. Rudy starts sixth grade. Olivia starts preschool.

In a scene prior to the opening credits, Olivia enters Cliff's bedroom wearing a Bart Simpson mask. It is a nod to FOX's decision to move The Simpsons to Thursdays at 8:00 pm Eastern/Pacific, presenting The Cosby Show with its first true ratings challenge.

Cliff tries to win a classic jazz record at an auction, while filling in for Denise as volunteer parent at Olivia's preschool. Sullivan Walker as Dr. James Harmon.

The Huxtable family erupts in a battle of the sexes after Theo suggests having a stripper at Martin's post-wedding bachelor party.

Clair's teenage second cousin moves in with the family.

After Vanessa gets into a minor car accident and tries to cover it up, Cliff and Clair complain about the various small disasters the children have caused them, and the children fight back by complaining about ways Cliff and Clair have embarrassed them.

Rudy and Kenny do a video project.

Under pressure from her boyfriend to become sexually active, Pam considers using birth control.

Pam and Slide argue over whether they should become sexually active.

Rudy gets her first period. Clair plans "Women's day" where she goes out alone with Rudy and answers any questions she has, but Rudy refuses to talk. Keith Diamond as Danny.

Seeking privacy, Denise and Martin decide to look for their own apartment.

The husband of one of Cliff's patients worries that he will be a poor father because he has no athletic ability. After Pam breaks up with Slide, she and the class brain are attracted to each other.

Clair enters menopause. She takes the news fine, but the kids treat her as if she's losing her mind.

Elvin and Sondra help friends move during a football game.

Theo will make the dean's list if he gets an A on his final, but a beautiful exchange student planning to leave the next day for Barbados distracts him. Vanessa A. Williams appears (now portraying Cheryl).

Pam's grades have improved, but she worries that she will not be able to afford college.

Cliff's patient and her husband are convinced that they are prepared for every scenario ... and then labor begins.

Rudy begs Martin to let her babysit Olivia. Cliff and Dr. Harmon enter a pinochle tournament as partners ... and so do their wives.

To celebrate his 27th wedding anniversary with Clair, Cliff recreates the Callaloo Pot, a Caribbean restaurant where the couple dined on their honeymoon.

An old friend of Clair visits, along with her husband. Rudy prepares for her first date.

Theo's friend Denny thinks his girlfriend is cheating on him.

When Olivia comes down with a cold, everyone (except Cliff) has a different home remedy to offer as a cure. Russell and Anna celebrate another wedding anniversary. Cliff, Rudy and Olivia perform Koko Taylor's "I'm A Woman".

Rudy has a nightmare about Olivia always getting her way.

Cliff goes bowling with his friends.

Clair tries to prevent Cliff from buying a new appliance from his friend Jake.

Lost episode from Season 6. Guest appearances by Red Buttons and E. G. Marshall. Last appearance of Lisa Bonet as Denise.

Theo, who is majoring in pediatric psychology, begins an internship as a junior counselor at the community center; he soon suspects that one of the children there is dyslexic. First appearances of Merlin Santana as Stanley and Eugene Byrd as Eugene.

Theo continues his attempts to help Stanley and the other children at the community center.

18 year old Vanessa reveals that she is engaged to a 29 year old Head Caretaker of her University ... and has been for six months.

Cliff announces plans to add a new room to the house for Clair ... and only Clair. Sondra and Elvin are on the verge of purchasing their first house.

During his first parent-counselor meeting, Theo and a single mother discover mutual attraction. Rudy meets Stanley and the two are immediately smitten with each other, much to the chagrin of a jealous Kenny.

Pam begins to realize that, because of her below average grades earlier in high school, she will not be able to attend the same college as her best friend.

Anxious to see a famous rapper, Rudy and her friends lie to their parents in order to get into a club for 16 year olds and up. Cliff and Clair secretly send Pam, Lance and Charmaine to keep an eye on them.

Winnie and Nelson drive Cliff and Clair crazy around the house while Elvin and Sondra wait to move into their new house.

Vanessa's grandparents Russell Huxtable and Carrie Hanks are desperate to meet her fiancé Dabnis, who bonds with Cliff over a plumbing job.

Cliff chaperones Olivia's field trip to the museum; Theo falls victim to a scammer while ordering T-shirts for the community center.

Cliff teaches a class "for men only" at the community center.

Olivia tries to delay Martin's return to Asia. Last appearance of Joseph C. Phillips as Martin.

Vanessa and Dabnis have relationship problems, as do Rudy and Stanley.

As Christmas approaches, Clair gets a wonderful present: the completion of her special room.

Theo is accepted to graduate school at NYU, but faces a tough decision when he is unexpectedly offered a chance to interview for a corporate job in San Francisco.

Pam, Lance, Charmaine, and a group of senior citizens protest a grocery chain that gives preferential treatment to customers in wealthier neighborhoods.

Kenny pretends that he is dating another girl, in order to make Rudy jealous and force Stanley out of the picture.

Rudy and her friends want to go on the subway.

Sondra, Elvin, and the twins finally move into their own house in New Jersey.

Vanessa and Dabnis announce that they have broken their engagement ... and would-be father-in-law Cliff is devastated.

Theo decides to turn down the corporate job in San Francisco and attend graduate school in New York. One of the students at the community center finds $600.

Clair and her college friends plan a retirement party for one of their former professors from Hillman. Vanessa brings home a Senegalese exchange student.

Cliff and Clair see Rudy changing. While preparing their wills, Sondra and Elvin try to determine who should be the twins' legal guardian if the couple should both die. Charmaine and Lance prepare to visit Hillman College.

Cliff and Clair go to a local radio station for a live salsa performance. Kenny babysits Olivia.

Kenny turns to Rudy and Cliff for help after lying to his girlfriend about plans for her birthday party. Cliff and Clair work on their income tax return.

Theo prepares to graduate from New York University. An elated Cliff continues to invite additional people to the ceremony, despite the fact that Theo only has a limited number of tickets.

As Theo graduates from NYU, Cliff remembers how a 14 year old Theo received D's in 9th grade and had no desire to attend college at all. Denise telephones and reveals that she is pregnant. Olivia leaves to join Denise and Martin in Singapore.