When Rudy's pet fish, Lamont, dies, Cliff tries to bring the family together for a funeral in the bathroom. The festivities end when Rudy gets bored and leaves to watch TV.

Vanessa claims that she is old enough to watch a scary movie, but Cliff still forbids it. Vanessa sneaks out anyway, but ends up having nightmares as a result.

Cliff and Clair receive a visit from an old friend—and he has a new girlfriend that is half his age. They are initially suspicious, but learn that judging by appearances isn't always right.

Denise asks Cliff to talk to her friend, who has a medical problem. Cliff diagnoses the girl as having a mild bladder infection, but learns that she was wary of telling her parents without certainty. Cliff and Clair decide to show the kids that they can tell them anything, but the children quickly point out that their parents will just get angry. Cliff admits that anger is part of problems, but tells the children that no matter what, they will be loved.

Theo's math teacher comes for dinner, to Theo's extreme consternation. He thinks she plans to tell his parents of a bad grade on a math test. To his surprise, Mrs. Westlake comes to dinner looking young, attractive, and even with a sense of humor; and she has a very good surprise! Mrs. Westlake also gives Theo his test-he actually gets an 89, and he proceeds to embrace her, much to his shock. Sonia Braga as Mrs. Westlake.

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.

Cliff, who has a fetish for electronic appliances, buys a juicer. Rudy and Peter, bored from Vanessa's inattentive baby-sitting, decide to use it even they are not allowed to use appliances. David Langston Smyrl as Mr. Lucas. Peter Costa as Peter.

For Russell and Anna's 49th wedding anniversary, the family commissions a portrait of the couple as newlyweds, and offers them a cruise to Europe. Later in the evening, the whole family performs Ray Charles' "Night Time Is the Right Time", with Theo, Rudy and Cliff each lip-synching a solo. Earle Hyman as Russell. Clarice Taylor as Anna.

When friend Suzanne accompanies Denise to observe the Huxtables' normal behavior, a smitten Theo behaves far from normally. Robin Givens as Suzanne. Blair Underwood as Mark.

When Sondra and Elvin announce their engagement, Clair and the children use the news to play a practical joke on Cliff, who launches a counter-offensive of his own. Geoffrey Owens as Elvin.

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.

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

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.

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.

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.

Cliff prepares for a physical.

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

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

Russell and Anna's 50th wedding anniversary. The family performs James Brown's "I Got the Feelin' " in this sequel to Season 2's "Happy Anniversary". Earle Hyman as Russell. Clarice Taylor as Anna. Geoffrey Owens as Elvin. Appearance by Frank Foster and the Count Basie Orchestra. First mention of Rudy's desire to have a husband named "Bud" when she grows up.

Theo and Cockroach decide they want to learn to fly, but Cliff doesn't want to waste his money on another dream of his son's. Carl Anthony Payne II as Cockroach. First appearance of Deon Richmond as Kenny, a.k.a. "Bud".

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."

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

Clair secretly goes on a crash diet and exercise program to lose five pounds in a week so she can fit into a dress.

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.

Clair challenges Cliff to not eat any salty food for the day. Denise leaves for her freshman year at Hillman College.