
I sent out a very emphatic Twitter.
The Big Bang Theory Season 2, Episode 3

just hit 100
Twitter followers.
The Big Bang Theory Season 5, Episode 12

Yes, how did we live before Twitter?
The Big Bang Theory Season 2, Episode 23

According to their Twitter feed,
they're out of sunblock,
The Big Bang Theory Season 5, Episode 1

You just e-mail and text and Twitter...
The Big Bang Theory Season 4, Episode 1