or under the icy SURFACE
of Europa?
The Big Bang Theory Season 11, Episode 10
If there is life beneath
the SURFACE of these planets,
The Big Bang Theory Season 11, Episode 10
...with silicone RTV
to provide a better mounting SURFACE?
The Big Bang Theory Season 2, Episode 18
in the Earth's
SURFACE.
The Big Bang Theory Season 7, Episode 3
Erase the hard drives, grab the tapes, wipe
our fingerprints off every SURFACE and run.
The Big Bang Theory Season 2, Episode 8