♪ The autotrophs BEGAN to drool,
Neanderthals developed tools ♪
The Big Bang Theory Season 5, Episode 6
♪ The Earth BEGAN to cool ♪
The Big Bang Theory Season 5, Episode 18
Oh, that's how my father
always BEGAN our football conversations.
The Big Bang Theory Season 3, Episode 6
♪ The autotrophs BEGAN to drool,
Neanderthals developed tools ♪
The Big Bang Theory Season 12, Episode 4
♪ The Earth BEGAN to cool
The Big Bang Theory Season 7, Episode 21