Clair could be named partner at her law firm if an interview goes well-but Rudy is sick! Cliff vows to take care of her while Clair works, and engages in some unique doctoring methods. Clair is named partner and Rudy is fine by the end.

Cliff tries to impress Denise's friends by teaching them how to jitterbug. Some of Clair's friends also show off their dance moves. Soon, the whole house is full of dancers. Blair Underwood as Denise's boyfriend (uncredited), Judith Jamison as Marie, Donald McKayle as Ralph, Gerard Cooper as Guy, Christine Langner as Girl

Vanessa is placed in an advanced science class. She creates a model of the solar system, but learns that she will have to work harder than ever if she hopes to succeed. First appearance of Pam Potillo as Vanessa's friend Janet Meisner.

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.

While preparing to go out on a proposal anniversary dinner, Clair breaks her toe, but tries not to let it upset her routine. In the end, she develops a unique piece of footwear to hide her cast.

After his limo collides with Denise's car, Stevie Wonder (appearing as himself) invites the Huxtables to a recording session. Wonder performs "I Just Called to Say I Love You" with Clair and the family.

Absent: Sabrina Le Beauf as Sondra Huxtable.

Theo's math teacher has a baby and Cockroach shows a different side. Carl Anthony Payne II as Cockroach. Sonia Braga as Mrs. Westlake. Cockroach's full real name, Walter Bradley, is revealed in this episode (only his first name was previously mentioned).

After Theo claims that he'll have no problem making it in the "real world", the Huxtables convert their house in the "Real World Apartments" and teach him a lesson about the real world; i.e., needing employment and references to get an apartment, income to get a bank loan, having to pay for his meals, etc. Carl Anthony Payne II as Cockroach.

In a charity run, Cliff races at the Penn Relays with "Tailwind" Turner and -- as apparent payback for the race a year prior -- ends up having to run the final leg against Olympic gold medalist Valerie Brisco-Hooks. Josh Culbreath as Col. Sanford "Tailwind" Turner. Valerie Brisco-Hooks appears as herself. Cameo appearance by Bill Cosby's real wife, Camille Cosby (uncredited).

The Huxtable house is thrown into chaos after Rudy finds a snake in the basement.

Cliff is in charge when Clair leaves for 10 days.

Cliff buys a new car. Rudy cuts some animal pictures out of Cliff's expensive books for school. Guest appearance by Sinbad, who would later portray Walter Oakes on the Cosby Show spinoff, A Different World.

Watched by almost 65 million viewers when it originally aired, "Say Hello to a Good Buy" was the series' highest rated episode.

Denise holds a bridal shower for her pregnant and bride-to-be friend Veronica, but finds out some disturbing information.

Absent: Sabrina Le Beauf as Sondra Huxtable, although mentioned.

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.

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.

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.

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