If you'd let me invite Penny,
you would've had your FOURTH.
The Big Bang Theory Season 1, Episode 7
If it's half as much fun as One Times Ten to
the Fourth Bottles of Beer on the Wall, I'm in.
The Big Bang Theory Season 8, Episode 19
...I finally arrived at the
Fourth Annual Dixie Trek Convention...
The Big Bang Theory Season 3, Episode 5
Okay, we're gonna need a strong FOURTH
for our team.
The Big Bang Theory Season 1, Episode 13
I'll be the FOURTH woman ever
to win a Nobel in physics.
The Big Bang Theory Season 12, Episode 19