Kaley Cuoco and Chris Messina chat with ET’s Cassie DiLaura about season 2 of ‘Based on a True Story,’ premiering Nov. 21 on Peacock. Kaley can’t stop beaming over her and fiancé Tom Pelphrey’s daughter, Matilda, calling their 1-year-old a ‘performer,’ ‘equestrian’ and ‘jokester.’ The actress also shares the backstory of her sister, Briana Cuoco, joining the show’s second season, which finds new parents Ava and Nathan tackling another murder investigation.
