
in the Earth's
SURFACE.
The Big Bang Theory Season 7, Episode 3

or under the icy SURFACE
of Europa?
The Big Bang Theory Season 11, Episode 10

...given the SURFACE area of this car
is about 60,000 square centimeters...
The Big Bang Theory Season 8, Episode 19

Erase the hard drives, grab the tapes, wipe
our fingerprints off every SURFACE and run.
The Big Bang Theory Season 2, Episode 8

...as the SURFACE of
an n-dimensional superfluid.
The Big Bang Theory Season 8, Episode 23