Karan Johar calls 'Kyunki Saas Bhi Kabhi Bahu Thi' the show that changed Indian television, ahead of its big return with Season 2. The Ekta Kapoor classic, which originally aired from 2000 to 2008, will see Smriti Irani and Amar Upadhyay reprise their iconic roles. The new season premieres on July 29 at 10:30 PM on Star Plus.