
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

A BETA test requires people
that weren't involved
The Big Bang Theory Season 5, Episode 14

And smart. Phi Beta Kappa.
The Big Bang Theory Season 7, Episode 17

Look at the BETA function
of quantum chromodynamics.
The Big Bang Theory Season 1, Episode 5