TV sitcom 'Extended Family' inspired by real-life relationship of Celtics owner, wife and her exTV sitcom 'Extended Family' inspired by real-life relationship of Celtics owner, wife and her ex - The Associated Press

The new NBC sitcom “Extended Family” is loosely based on the real-life family dynamics between Boston Celtics owner Wyc Grousbeck, his wife and her ex-husband. On the show, a couple divorces amicably and work together to raise their two children. And everythi…