“The Rothman Disintegration” – When an office at the University opens up, Sheldon must compete for it with his archenemy, Kripke. Meanwhile, a gift from Amy makes Penny (Kaley Cuoco, right) uncomfortable – and Bernadette concurs (Melissa Rauch, left), on THE BIG BANG THEORY, Thursday, Feb. 16 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

“The Rothman Disintegration” – When an office at the University opens up, Sheldon must compete for it with his archenemy, Kripke. Meanwhile, a gift from Amy (Mayim Bialik) makes Penny uncomfortable, on THE BIG BANG THEORY, Thursday, Feb. 16 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

“The Rothman Disintegration” – When an office at the University opens up, Sheldon (Jim Parsons) must compete for it with his archenemy, Kripke. Meanwhile, a gift from Amy makes Penny uncomfortable, on THE BIG BANG THEORY, Thursday, Feb. 16 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

“The Rothman Disintegration” – When an office at the University opens up, Sheldon must compete for it with his archenemy, Kripke. Meanwhile, a gift from Amy (Mayim Bialik, left) makes Penny (Kaley Cuoco, right) uncomfortable, on THE BIG BANG THEORY, Thursday, Feb. 16 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

“The Rothman Disintegration” – When an office at the University opens up, Sheldon (Jim Parsons, left) must compete for it with his archenemy, Kripke (John Ross Bowie, center). Meanwhile, a gift from Amy makes Penny uncomfortable, on THE BIG BANG THEORY, Thursday, Feb. 16 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. Also pictured: Joshua Malina as President Seibert (right). Photo: Sonja Flemming/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.