Watch Amitabh Bachchan Replaces Shahrukh Khan In Kaun Banega Crorepati! - Bollywood News. Kaun Banega Crorepati, India's biggest game show on celluloid, was first hosted by Amitabh Bachchan followed by Shah Rukh Khan hosting the 3rd season which didn't get the same response as the Shehenshah. And now Amitabh has officially announced his come back on the show with KBC 4. Visit us at http://www.rajshri.com/Listing/Trailers-and-Trivia/Free-Hindi-Trailers-Trivia-New-Bollywood-Promos-Clips-First-Look for the latest bollywood film reviews, makings & trailers.