Amy questions her relationship with Sheldon until Leonard shows her that she's included on her boyfriend's screensaver.
It's Christmas on The Big Bang Theory! Howard simply awfully happy about it here.
The gang wonders what their lives would have been like if they'd never met Sheldon on The Big Bang Theory. "The Cooper Extraction" is the 11th episode of the show's seventh season.

The Big Bang Theory Season 7 Episode 11 Quotes

Penny: Oh, that's great. You're gonna be an uncle. Uncle Sheldon.
Sheldon: No. I'll be Uncle Dr. Cooper.

I hope it's just a sprain. I cannot walk into that ER with another video game injury.