Can you recommend a SURFACE
The Big Bang Theory Season 7, Episode 18
...on a SURFACE located
at the farthest reaches of our cosmos.
The Big Bang Theory Season 6, Episode 5
in the Earth's
SURFACE.
The Big Bang Theory Season 7, Episode 3
If there is life beneath
the SURFACE of these planets,
The Big Bang Theory Season 11, Episode 10
or under the icy SURFACE
of Europa?
The Big Bang Theory Season 11, Episode 10