S3·E21 I Know That You Know
- Episode
- Season 3, Episode 21
- Air Date
- March 19, 1987
- Runtime
- 22 minutes
- Director
- Jay Sandrich
- Writers
- Matt Williams, Carmen Finestra
- Story Type
- Core Character Arc
Core
Aired March 19, 1987 22 min
Advertisement
Synopsis
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.
Rate this episode
Your rating is anonymous and can be changed later.
Be the first viewer to rate it.
Advertisement
Director & writers
Guest stars
Advertisement
Frequently Asked Questions
When did Season 3 Episode 21 of The Cosby Show air?
Season 3, Episode 21 ('I Know That You Know') originally aired on March 19, 1987.
How long is Season 3 Episode 21 ('I Know That You Know')?
The runtime for this episode is approximately 22 minutes.
What happens in The Cosby Show Season 3 Episode 21?
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....
All The Cosby Show episode ratings Season 3 Where to watch
Top-rated The Cosby Show episodes
Advertisement
What viewers say
No comments yet. Be the first to share your take on The Cosby Show S3E21.