Fallon plays a dangerous game of charades with the Colbys on Dynasty. "The Gospel According to Blake Carrington" is the 14th episode of the show's first season.
Fallon: Why on earth would Jeff want to marry me so badly that he'd have Monica manipulate me into it? Culhane: Marriage is the ultimate merger. Fallon: Yeah, but everyone knows, Carrington's don't marry without a prenup.