The Big Bang Theory Photos from "The Cognition Regeneration"

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On The Big Bang Theory Season 10 Episode 22, Sheldon pushes himself to try new things, and Penny is offered a job from her ex-boyfriend, Zack.

Check out the photos below for a preview of "The Cognition Regeneration," airing Thursday, April 27th at 8/7c on CBS.

Need to catch up on past episodes? You can always watch The Big Bang Theory online right here via TV Fanatic!

1. Penny Runs into Her Ex - The Big Bang Theory

Penny Runs into Her Ex - The Big Bang Theory
Penny runs into her ex-boyfriend, Zack, on The Big Bang Theory.

2. Video Game Night - The Big Bang Theory

Video Game Night - The Big Bang Theory
The guys get together for one of their favorite activities, playing video games.

3. Sheldon Loves His Game - The Big Bang Theory Season 10 Episode 22

Sheldon Loves His Game - The Big Bang Theory Season 10 Episode 22
Sheldon loves his video game, and he's very competitive, as usual.

4. Girls Night Out - The Big Bang Theory Season 10 Episode 22

Girls Night Out - The Big Bang Theory Season 10 Episode 22
Meanwhile, the girls have a night out of their own, which Bernadette definitely deserves.

5. Cheers, Ladies! - The Big Bang Theory Season 10 Episode 22

Cheers, Ladies! - The Big Bang Theory Season 10 Episode 22
Penny, Bernadette, and Amy seem to be enjoying their night out on the town.

6. Her Boyfriend's Back... - The Big Bang Theory Season 10 Episode 22

Her Boyfriend's Back... - The Big Bang Theory Season 10 Episode 22
Remember Zack? Well, he's back, and after running into Penny, he has an offer for her -- a job.

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The Big Bang Theory Season 10 Episode 22: "The Cognition Regeneration"
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The Big Bang Theory Season 10 Episode 22 Quotes

Penny: I didn't know you could drink while you were breastfeeding.
Bernadette: Yeah, they say the yeast in beer helps with milk production.
Amy: I'm pretty sure that's a myth. Let me check.
Bernadette: Ruin it for me, and I'll break this glass over your head.

It's light, it's flakey, it's buttery. You don't need to have sex with him. Just eat one of these!

Raj