
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

It's the buggy BETA version.
The Big Bang Theory Season 2, Episode 20

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