
...you'd be in a non-inertial
REFERENCE frame and would...
The Big Bang Theory Season 1, Episode 3

For future REFERENCE,
if I want to watch Mean Girls,
The Big Bang Theory Season 9, Episode 11

The Star Trek REFERENCE
and the play on words...
The Big Bang Theory Season 2, Episode 22

That is a cleverly veiled REFERENCE
to Howard's lifelong obsession...
The Big Bang Theory Season 6, Episode 9

I challenge you to find a single REFERENCE
to Kryptonian skin cells.
The Big Bang Theory Season 1, Episode 2