In what UNIVERSE do I have Penny?
The Big Bang Theory Season 1, Episode 15
♪ Our whole UNIVERSE
was in a hot, dense state ♪
The Big Bang Theory Season 12, Episode 13
♪ Our whole UNIVERSE
was in a hot, dense state ♪
The Big Bang Theory Season 7, Episode 20
♪ 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 7, Episode 3