TV series example of the word

The Big Bang Theory Season 7, Episode 7
Somewhere around the third floor,

The Big Bang Theory Season 11, Episode 8
Well, according to his text, he was on the second floor,

The Big Bang Theory Season 8, Episode 20
LEONARD: Thank you. AMY: Have a seat on the floor.

The Big Bang Theory Season 7, Episode 16
No, no, no, stay there. I'm fine on the floor.

The Big Bang Theory Season 10, Episode 13
What if you didn't step on the floor at all?