If you find yourself watching an unfamiliar NBC sitcom that seems oddly familiar but also not, it isn’t just you. “Extended Family,” a new NBC sitcom, was inspired by the unconventional family life of Boston Celtics owner Wyc Grousbeck, his wife Emilia Fazzalari, and her ex-husband George Geyer. The show explores the lives of divorced couple Jim and Julia, portrayed by Jon Cryer and Abigail Spencer, who continue to maintain an amicable relationship while co-parenting their two children.
