You just e-mail and text and Twitter...
The Big Bang Theory Season 4, Episode 1
I was jealous, angry
and new to Twitter.
The Big Bang Theory Season 12, Episode 18
go back in the archive of his feed
until I found his Twitter handle.
The Big Bang Theory Season 9, Episode 10
Yes, how did we live before Twitter?
The Big Bang Theory Season 2, Episode 23
just hit 100
Twitter followers.
The Big Bang Theory Season 5, Episode 12