The Cosby Show Season 3 Episode 21 - I Know That You Know

Airdate: 1987-Mar-19

Episode summary:

Sondra and Elvin announce their engagement. Since Cliff always says he knows everything that goes on, Clair and the kids decide to play a joke on Cliff about the engagement. He finds out before the joke and turns the tables on the others.

About The Cosby Show series:

The show focuses on the Huxtables, an affluent African-American family living and growing up in Brooklyn, New York.