The Big Bang Theory Lego set 21302 comes from Lego Ideas. Building Big Bang Theory Lego Set in time lapse set to The Big Bang Theory song by the Barenaked Ladies. This assembly was captured with still frames and then rendered into a time lapse. The video has the original Big Bang Theory Song by the Barenaked Ladies. This is the assembly of The Big Bang Theory Lego set 21302. The Lego Ideas set is 484 pieces and includes all of the main characters from The Big Bang Theory. The Lego mini figures include Bernadette, Howard, Penny, Leonard, Sheldon, Amy, and Raj.