Look at the BETA function
of quantum chromodynamics.
The Big Bang Theory Season 1, Episode 5
I thought because our
relationship's in a BETA test,
The Big Bang Theory Season 5, Episode 15
Seriously, do I not get credit
for knowing BETA test?
The Big Bang Theory Season 5, Episode 14
This is something I long ago came
to peace with in my role as the BETA male.
The Big Bang Theory Season 2, Episode 9