The Monster Isolation Season 6, Episode 17 -  Aired February 21, 2013

The Monster Isolation

After his date walks out on him, Koothrappali withdraws from the world and hides out in his apartment. Meanwhile, Penny's acting skills impress Sheldon when he sees her in a play.

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Guest Stars: Kate Micucci as Lucy, Riccardo LeBron as Tom

Writers: Chuck Lorre (Story), Dave Goetsch (Story), Maria Ferrari (Story), Steven Molaro (Teleplay), Eric Kaplan (Teleplay), Steve Holland (Teleplay)

Director: Mark Cendrowski

Viewers: 17.62 million Households Rating: 10.5/17 Adults 18-49 Rating: 5.6/17

Available on iTunes

Episode Notes

  • The title refers to Raj isolating himself in his apartment after his terrible date with Lucy.

> Fun with Flags

Sheldon welcomes Penny as a guest on "Sheldon Cooper Presents: Fun with Flags" in an episode featuring the Nebraska state flag.

> Sheldon's Knock

When Sheldon goes to thank Penny for giving him acting tips, he gets to her apartment as she's just opening the door. Penny asks if Sheldon will okay since he didn't get to perform his knock, which he says he will since he didn't start. Nevertheless, Sheldon performs the knock as he talks to Penny, inserting a round of knocking each time he's about to say her name.

Episode Quotes

Sheldon: She's remarkable.
Leonard: She really is.
Sheldon: How is it that she can remember all those lines, yet as a waitress she can't remember no tomato on my hamburger?

Bernadette: It smells pretty ripe in here. You kinda feel it in your eyes.

Lucy: I'm kind of broken.
Raj: That's great. I'm broken, too.
Lucy: Oh, no you're not.
Raj: Oh, I totally am. If it wasn't for this beer, I couldn't even talk to you right now. I'm a wreck. There are many things seriously wrong with me. And not quirks, either. Like diagnosable psychological problems. Maybe brain damage.
Lucy: Well how do I know you're not just saying that?
Raj: Go out with me on one date. I promise you, you'll see.

Raj: I guess you could say Raj is my name and stars are my game.

Raj: My heart is stone. From now on, I'm a monk. I renounce all worldly pleasures. Except for lobster. And garlic butter.

News Stories

Title Date Posted
Episode 6.17 Ratings February 22, 2013

Last night's episode of The Big Bang Theory finished first in its time slot and ranked as the night's #1 show in all key demos.  Full story

CBS Announces Episode 6.17 February 8, 2013

CBS has issued the press release for the February 21 episode of The Big Bang Theory.  Full story


Penny joins Sheldon as he films another episode of his podcast, "Fun with Flags". Seeing how stilted Sheldon's delivery is, Penny tries to teach him some of the things she's learned in her acting classes. Meanwhile, Leonard, Howard and Bernadette turn up at Raj's apartment to check on him as he hasn't been going to work. Raj is still reeling from a terrible date with Lucy, who climbed out of a window to escape their date. They find Raj in his underwear surrounded by mess, but they're unable to convince him to leave his apartment.

When Sheldon mentions to Amy how Penny helped him with his podcast, Amy suggests he should go thank Penny. Sheldon doesn't see why but relents and goes over to show his appreciation to Penny, who invites him and Amy to see a production her acting class is putting on. Sheldon thinks it sounds terrible, but when he returns to his video chat with Amy, she convinces him it's the right thing to do. Sheldon returns to Penny's to tell her they'll see the play, but she's not sure she wants him there.

As the guys shop at the comic book store without Raj, Lucy shows up. When Howard confronts her about ditching Raj, she gives him a message to pass to Raj. When Howard goes to Raj's apartment to give him Lucy's number, Raj initially rejects the idea and decides to stay in his apartment in his underwear. After Howard leaves, Raj chases him down the street - still in his underwear - to get the number. Meanwhile, Amy is at Sheldon and Leonard's apartment as they get ready to go see Penny's play. Leonard forces Sheldon to remove all the consoles and games from his person before leaving.

Lucy shows up at Raj's apartment to apologize for walking out on him. She admits she has a hard time being around people, but she is trying to push herself into situations she's uncomfortable with. Raj tells her that he's not scared off by her being kind of broken as he's also broken. They agree to go out on a date so Raj can show her he also has issues. Elsewhere, Sheldon, Amy and Leonard are impressed by Penny's performance in A Streetcar Named Desire, though Sheldon wonders how she manages to remember her lines when, as a waitress, she can't remember he doesn't have tomato on his hamburger.