
...and otherwise refusing to acknowledge
your EXISTENCE.
The Big Bang Theory Season 2, Episode 8

...he wrote a paper
postulating the EXISTENCE...
The Big Bang Theory Season 6, Episode 3

Query: On what plane of EXISTENCE
is there even a semi-rational link...
The Big Bang Theory Season 1, Episode 1

If you guys prove the EXISTENCE
of Unruh radiation...
The Big Bang Theory Season 7, Episode 2

...the terms of your metaphor
by acknowledging her EXISTENCE. I'm out.
The Big Bang Theory Season 2, Episode 8