The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers and head writers on the series, along with Steven Molaro. It aired on CBS from September 24, 2007, to May 16, 2019, running for 12 seasons and 279 episodes. the cast is replaced by Tom Holland as Leonard Hofstadter, Asa Butterfield as Sheldon Cooper, Tony Revolori as Raj Koothrappali, Ed Oxenbould as Howard Wolowitz, Madelyn Cline as Penny Teller, Madison Iseman as Bernadette Rustinkoswski, Mary Mouser as Amy Farrah Fowler)
