
I finally have time to test my HYPOTHESIS
about the separation of water molecules...
The Big Bang Theory Season 1, Episode 4

You have a backup HYPOTHESIS?
The Big Bang Theory Season 1, Episode 6

Let's say for a moment that
I accept the bath-item-gift HYPOTHESIS.
The Big Bang Theory Season 2, Episode 11

Okay. All right.
Let's assume your HYPOTHESIS.
The Big Bang Theory Season 2, Episode 1