The Big Bang Theory, Season 4

[The guys are reading responses to Sheldon's lecture]

Leonard:
I found another Tweet from a student at Sheldon's lecture: [from his phone] "Dr. Cooper has taken a relatively boring subject and managed to make it completely insufferable. Plus, he looks like a giant insect."

[Raj laughs]

Howard:
Listen to this one: [from his phone] "Does Einstein's theory explain why time flies when you're having fun, but when you're listening to Dr. Cooper, it falls out of the sky, dead?"

[Howard and Leonard laugh]

Raj:
[while on a laptop] Ooh, somebody took pictures and uploaded them to their Flickr account.

[Howard and Leonard have a look on the laptop]

Leonard:
[amazed] Wow. How do you get an entire lecture hall to flip you off at the same time?

Howard:
Apparently, if you're Sheldon, all you need to do is turn your back.

[Penny enters]

Penny:
Hey, Leonard, is your Wi-Fi down? I can't get on.

Leonard:
Oh, Sheldon changed the password. It's now "Penny is a freeloader"... no spaces.

Penny:
[typing on her phone] Thanks. What are you guys doing?

Leonard:
Sheldon gave a lecture at the university tonight. We're reading the reviews.

Penny:
Oh, how'd he do?

Howard:
Well, picture the Hindenburg meets Chernobyl meets Three Mile Island meets Tron 2.

Penny:
That bad, huh?

Leonard:
[going to Penny with his phone] Read this woman's Tweet.

Penny:
[reading from Leonard's phone] "Listening to Dr. Cooper's made me want to start cutting myself again."