The Jeffersons - Season 4 - Eps 13: The Jefferson Curve
Marcus takes a lesson from George and throws a pretty girl the Jefferson curve, which is to bend the truth to get what you want and Marcus tells the girl that he's Lionel. This eventually leads George and Louise to belive that Lionel is having an affair.
About The Jeffersons

Title: The Jeffersons
First Air Date: 1975-01-18
Last Air Date: 1985-07-02
Status: Ended
Rating: 7.359/10 (from 110 votes)
Language: EN
Seasons: 12
Total Episodes: 248
Network: CBS
Genres: Comedy, Family
Production Companies: The NRW Company, Embassy Television, Ragamuffin Inc., TAT Communications Company
Synopsis
Sitcom following a successful African-American couple, George and Louise “Weezyö Jefferson as they “move on up” from working-class Queens to a ritzy Manhattan apartment. A spin-off of All in the Family.
Cast

Isabel Sanford
Louise Jefferson

Sherman Hemsley
George Jefferson

Roxie Roker
Helen Woodroow Willis

Franklin Cover
Thomas "Tom" Willis

Paul Benedict
Harry Bentley

Marla Gibbs
Florence Johnston