On the latest 714 Delaware St., we’re talking about one of our favorite Roseanne supporting players: the one and only Sandra Bernhard! We gush over Ms. Bernhard’s unconventional career and incomparable mien, from her turn as the desperate-and-deluded Masha in Martin Scorsese’s The King of Comedy (1983) to her one-woman show Without You I’m Nothing (1990) to her regular appearances on Letterman. Katherine reports on seeing Sandra live twice (plus meeting her for a photo op), and we dig deep into her Roseanne character, the charmingly self-centered Nancy Bartlett. We discuss the season 4 “Vegas” episodes, in which she impulsively marries Arnie (Tom Arnold), as well as season 5’s “Ladies Choice,” in which they’re already broken up and she announces she’s dating Marla (Morgan Fairchild), whom she met at Rodbell’s makeup counter. Join us as we celebrate this hilarious—and to us, frankly inspirational—actress and comedian, without whom we can’t imagine Roseanne in its later seasons.