♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 14
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 5, Episode 14
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 24
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 6
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 2