
Hey, if you guys need a FOURTH, I'll play.
The Big Bang Theory Season 1, Episode 7

But we're on the FOURTH floor.
The Big Bang Theory Season 12, Episode 5

Her apartment's on the FOURTH floor,
elevator is broken, you're gonna...
The Big Bang Theory Season 1, Episode 2

...at a Teens for Jesus
Fourth of July hoedown count as a date?
The Big Bang Theory Season 4, Episode 1

That's the FOURTH time
she's been to the bathroom
The Big Bang Theory Season 12, Episode 23