Hitchhiker's Guide
to the Galaxy.
The Big Bang Theory Season 7, Episode 6
Which is also called
The Hitchhiker's Guide to the Galaxy.
The Big Bang Theory Season 8, Episode 8
The Milky Way is a GALAXY in space.
The Big Bang Theory Season 6, Episode 5
Now, in the beloved novel
Hitchhiker's Guide to the Galaxy...
The Big Bang Theory Season 8, Episode 8
the guardians of peace
and justice in the GALAXY.
The Big Bang Theory Season 9, Episode 11