«The Discovery Dissipation» — Leonard and Amy help Sheldon cope with the shame heÃ¢Â?Â?s feeling after his accidental contribution to science is disproved. Meanwhile, Raj must stay with Howard and Bernadette for a week, on THE BIG BANG THEORY, Thursday, Dec. 5 (8:00 Ã¢Â?Â? 8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Kunal Nayyar and Simon Helberg Photo: Michael Yarish/Warner Bros. Entertainment Inc. Ã?Â© 2013 WBEI. All rights reserved.