
♪ The Earth began to cool
The Big Bang Theory Season 12, Episode 4

♪ The Earth began to cool
The Big Bang Theory Season 5, Episode 15

Do you think there's a chance
that an asteroid could hit the Earth...
The Big Bang Theory Season 8, Episode 20

So their plan for saving
the Earth from Armageddon
The Big Bang Theory Season 10, Episode 7

Are we on the planet Earth?
Breaking Bad Season 2, Episode 3