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
Is it a good time to
evaluate the BETA test
The Big Bang Theory Season 5, Episode 14
And smart. Phi Beta Kappa.
The Big Bang Theory Season 7, Episode 17