Season 4

The newlywed Sondra and Elvin return from their honeymoon with shocking news for Cliff and Clair.

Theo and Cockroach come home unusually late from a track meet. They both deny anything out of the ordinary happened, but Clair knows better. A mock trial is held 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 discovers he's lost a power drill that his neighbor loaned to him.

Theo must read ‘Julius Caesar’ for school, but complains that it is boring. Russell and his friends read scenes from the play aloud, and Theo is enthralled.

Cliff and Clair have an 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.

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.

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

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 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.

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.

Rudy has to play the violin in music class at school, but gets jealous because she thinks her classmates' instruments are more fun.

Theo visits a friend in the hospital who has cancer.

Vanessa tries out for the drum major at school. Meanwhile, Cliff cooks up a batch of extremely spicy chili, and Russell tries to pay off a loan from an old friend.

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.

Cliff and a friend play pétanque.

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.

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.