When did david and darlene meet on roseanne?

David and Darlene first meet in the "Roseanne" series during the episode titled "The Courtship of Eddie's Father," which is the 14th episode of Season 2, originally aired on February 14, 1990. David, portrayed by Johnny Galecki, is introduced as a friend of Darlene's who eventually becomes her boyfriend. Their relationship develops throughout the series, becoming a central storyline.