Season 7 Episode 22

"The Proton Transmogrification" - Professor Proton helps Sheldon cope with grief, while Leonard turns a relationship milestone into a competition with Penny.

Season 7 Episode 22 Photos - The Big Bang Theory

1. Season 7 Episode 22 Photos - The Big Bang Theory

Amy and Bernadette make a “Star Wars Day” gift for the guys, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mayim Bialik, Melissa Rauch, Johnny Galecki, Simon Helberg, Jim Parsons, Kunal Nayyar and Kaley Cuoco-Sweeting ***Please Note: This photo may only be used for promotion and review of this episode of The Big Bang Theory,"The Proton Transmogrification", and may not be used for general promotion of The Big Bang Theory or any other purpose*** Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
A new side of Sheldon in

2. A new side of Sheldon in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon (Jim Parsons, left) cope with grief, while Leonard (Johnny Galecki, right) turns a relationship milestone into a competition with Penny, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Professor Proton in

3. Professor Proton in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon cope with grief, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Bob Newhart (pictured) returns as Professor Proton. Photo: Darren Michaels/Warner Bros. Entertainment Inc. © 2014 WBEI. All rights reserved
Raj2-D2 in

4. Raj2-D2 in "The Proton Transmogrification" S7 E22

Amy and Bernadette make a “Star Wars Day” gift for the guys, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured: Kunal Nayyar ***Please Note: This photo may only be used for promotion and review of this episode of The Big Bang Theory,"The Proton Transmogrification", and may not be used for general promotion of The Big Bang Theory or any other purpose*** Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Penny & Sheldon in

5. Penny & Sheldon in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon (Jim Parsons, right) cope with grief, while Leonard turns a relationship milestone into a competition with Penny (Kaley Cuoco-Sweeting, left), on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. ***Please Note: This photo may only be used for promotion and review of this episode of The Big Bang Theory,"The Proton Transmogrification", and may not be used for general promotion of The Big Bang Theory or any other purpose*** Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Howard, Sheldon and Raj in

6. Howard, Sheldon and Raj in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon (Jim Parsons, center) cope with grief, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Simon Helberg, Jim Parsons and Kunal Nayyar ***Please Note: This photo may only be used for promotion and review of this episode of The Big Bang Theory,"The Proton Transmogrification", and may not be used for general promotion of The Big Bang Theory or any other purpose*** Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Death Star Cake in

7. Death Star Cake in "The Proton Transmogrification" S7 E22

Amy (Mayim Bialik, left) and Bernadette (Melissa Rauch, right) make a “Star Wars Day” gift for the guys, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
May the 4th be with you in

8. May the 4th be with you in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon cope with grief, while Leonard turns a relationship milestone into a competition with Penny, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Simon Helberg, Kunal Nayyar, Jim Parsons, Johnny Galecki and Kaley Cuoco-Sweeting Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Hug therapy in

9. Hug therapy in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon (Jim Parsons, right) cope with grief, while Leonard (Johnny Galecki, left) turns a relationship milestone into a competition with Penny, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved
Penny's first funeral in

10. Penny's first funeral in "The Proton Transmogrification" S7 E22

Professor Proton helps Sheldon cope with grief, while Leonard (Johnny Galecki, left) turns a relationship milestone into a competition with Penny (Kaley Cuoco-Sweeting, right), on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved