I Know That You Know
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. Geoffrey Owens as Elvin.
Episode Details
Air date, runtime, timezone, and episode position.
Season
3
Episode
21
Air Date
19/Mar/1987
Air Time
20:00
Runtime
22 min
Overview
Episode summary.
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.
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