S10E20 The Recollection Dissipation The Big Bang Theory
calendar_today 2007. Chuck Lorre. Bill Prady.
people Johnny Galecki. Jim Parsons. Kaley Cuoco. Simon Helberg.
Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day. Also, Bernadette is nearing the end of her maternity leave and must return to work.