TV series example of the word

The Big Bang Theory Season 1, Episode 3
Olivia Geiger?

The Big Bang Theory Season 2, Episode 1
I can't believe I didn't bring my Geiger counter.

The Big Bang Theory Season 5, Episode 11
Like, okay, this one girl, Kathy Geiger,

The Big Bang Theory Season 5, Episode 11
Did Kathy Geiger laugh?