♪ Our whole UNIVERSE
was in a hot, dense state ♪
The Big Bang Theory Season 5, Episode 23
...that could serve as a portal
to a parallel UNIVERSE.
The Big Bang Theory Season 6, Episode 8
♪ Our whole UNIVERSE
was in a hot, dense state ♪
The Big Bang Theory Season 7, Episode 21
# Our whole UNIVERSE
was in a hot, dense state #
The Big Bang Theory Season 11, Episode 8
♪ Our whole UNIVERSE
was in a hot, dense state ♪
The Big Bang Theory Season 7, Episode 16