We knew the events of The Big Bang Theory Season 8 Episode 10 would come someday, didn't we?

We know that Sheldon - with a girlfriend and a full-time job and a different life than he had a few years ago - simply wouldn't be able to continue Fun with Flags much longer, right?

Still, it hurts.

Watch The Big Bang Theory Season 8 Episode 10 Online

Sheldon Cooper Presents Fun With Flags at least went out with a bang: LeVar Burton showed up again. Amy dressed as a kangaroo. Kripke played Flag or Not a Flag. And Sheldon made like Betsy Ross.

He also grew emotional toward the show's end and taught us yet another use for a white flag.

While Amy was enjoying time with her boyfriend, the other women were at a work party.

Penny learned there that her co-workers are afraid of her, even if Penny sees herself as “in a tree baking cookies,” ever so harmless.

Bernadette, meanwhile, kept denying that she’s a bully. She just took her father’s lesson of NOT taking crap from anyone to heart. But being tough and mean are different things, Penny notes, as she herself ends up apologizing to Dan at the shindig.

In Pasadena, Raj, Howard, and Leonard are cleaning out the late Professor Abbott's office and come across a champagne bottle that Abbott's mom gave him five decades ago, with the aim of opening it upon his first big discovery.

The men make a pact to open the bottle once they make a big discovery… until Sheldon uses the champagne to celebrate his own success: the return of Fun With Flags.

Of all The Big Bang Theory quotes this week, we hand Sheldon the trophy for Best Quip: He puts the reading in your rainbow, the Geordi in your La Forge, and the Kunta in your Kinte, Mr. LeVar Burton.

Now go watch The Big Bang Theory online and choose YOUR favorite!